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Choosing the best iSpring whole house water filters for chlorine requires looking at published specifications rather than marketing claims. We compared 13 models to find the right fit for your home's plumbing and water quality needs. The iSpring FC25B-PB Lead Removal Filter takes the top spot because its compact 4.5-inch width fits standard 10-inch housings while targeting lead and chlorine. Each pick in this list is ranked strictly by the data provided on the product pages. This guide helps you decide which system matches your flow rate, space, and contaminant removal goals.
01 Match the system to your pipe size
Your home plumbing dictates which filter fits. Most iSpring models use standard 1-inch ports, but some require 3/4-inch connections. Check your inlet size first. The WGB21B and WGB32B suit typical homes. The WCB32C is for smaller 3/4-inch lines. Choosing the wrong port size prevents installation. Verify your pipe diameter before buying.
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | iSpring FC25B-PB Lead Removal Filter Best overall | Standard housing lead and chlorine reduction | |
| 2 | iSpring WGB21B 2-Stage Whole House Filter Best budget | basic chlorine and sediment removal | |
| 3 | iSpring WGB32B 3-Stage Whole House Filter Also great | High-flow homes needing chlorine and sediment removal | |
| 4 | iSpring WGB32BM Iron & Manganese Whole House Filter Also great | iron and manganese removal with chlorine filtration | |
| 5 | iSpring WGB31B-KS Heavy Metals System Also great | homes needing lead and mercury reduction | |
| 6 | iSpring WHO32BM Horizontal Whole House Filter Best premium | homes needing iron, manganese, and chlorine removal | |
| 7 | iSpring WGB32B Heavy Metal Whole House Filter Also great | Heavy metal and lead reduction in homes | |
| 8 | iSpring WGB22B 2-Stage Whole House Filter Also great | Chlorine reduction with standard filter replacements | |
| 9 | iSpring WF150K Smart Valve System Also great | Automated chlorine and heavy metal removal | |
| 10 | iSpring WCB32C 3-Stage Clear Housing System Best 3/4-inch | 3/4-inch connections and visual maintenance | |
| 11 | iSpring WGB32B-KDS Anti-Scale System Best scale | Scale prevention and chlorine removal | |
| 12 | iSpring WGB31B 3-Stage 10-Inch Filter Also great | small homes with tight spaces | |
| 13 | iSpring WGB22B Stainless Steel Whole House Filter Best stainless steel | chlorine and sediment removal with stainless steel fittings |
02 The best fit for you
- You want the most compact model for lead removal – iSpring FC25B-PB Lead Removal Filter – It measures just 4.5 by 10 inches and weighs 5 pounds.
- You need a system for 3/4-inch pipe connections – iSpring WCB32C 3-Stage Clear Housing System – It features 3/4-inch ports to fit smaller standard plumbing lines.
- You want a stainless steel connection for durability – iSpring WGB22B Stainless Steel Whole House Filter – It includes stainless steel fittings for stronger and more durable connections.
- You seek a budget option for basic chlorine – iSpring WGB21B 2-Stage Whole House Filter – It offers a 2-stage design for simple chlorine and sediment reduction.
iSpring FC25B-PB Lead Removal Filter
Best for: Standard housing lead and chlorine reduction
- Target Contaminant
- Chlorine, Lead
- Target Contaminants
- Lead, chlorine, arsenic, mercury
- Filtration Capacity
- Up to 100,000 gallons
- Cartridge Dimensions
- 20" x 4.5"
- Installation Type
- Whole House
- Dimensions
- 4.5 × 4.5 × 10 inches
The iSpring FC25B-PB is a whole house water filter cartridge designed to remove chlorine and lead. It uses MetSorb media to target heavy metals like arsenic and mercury. The unit fits standard 20-inch by 4.5-inch housings. You get up to 100,000 gallons of filtration capacity before needing a change. It weighs 5 pounds and stands 10 inches tall. This cartridge suits households needing broad heavy metal reduction alongside chlorine removal.
- Removes up to 99% of lead per SGS testing
- Targets arsenic, mercury, and cadmium via MetSorb media
- Fits standard 20" x 4.5" housings
- Provides up to 100,000 gallons of filtration capacity
- 10-inch height is shorter than the 20-inch cartridges used by many competing iSpring systems
- 100,000-gallon capacity is lower than the 50,000-gallon baseline of some 2-stage systems when considering stage longevity
- Does not reduce Total Dissolved Solids (TDS)
- You need a single cartridge to replace chlorine and lead filters
- You have a standard 20-inch by 4.5-inch housing
- You want heavy metal reduction beyond just chlorine
- You require a complete multi-stage system rather than just a cartridge
- You need to remove Total Dissolved Solids (TDS)
- You prefer a larger 20-inch filter for extended capacity
Verdict: The iSpring FC25B-PB Chlorine & Lead Filter delivers targeted heavy metal removal in a compact 10-inch form factor. It fits standard housings and offers 100,000 gallons of capacity, making it a solid upgrade for users seeking lead reduction without switching to a reverse osmosis system.
iSpring WGB21B 2-Stage Whole House Filter
Best for: basic chlorine and sediment removal
- Target Contaminant
- Chlorine, Sediment
- Filtration Stages
- 2-Stage
- Target Contaminants
- chlorine, sediment, dirt, rust
- Filtration Capacity
- 50,000 gallons
- Port Size
- 1"
- Micron Rating
- 5-micron
The iSpring WGB21B is a two-stage whole house filtration system designed to reduce chlorine and sediment. It features a 5-micron polypropylene sediment filter and a coconut shell carbon CTO filter. The system holds up to 50,000 gallons of filtration capacity, suitable for a family of four. It includes 1-inch inlet and outlet ports for fast water flow. The unit weighs 25.8 pounds and measures 26 inches in length.
- Reduces over 90% of chlorine via the 2nd-stage CTO filter
- 50,000-gallon filtration capacity provides up to a year of clean water
- Pre-assembled on a mounting bracket for streamlined DIY installation
- Retains healthy minerals and does not reduce Total Dissolved Solids
- 50,000-gallon capacity is lower than the 100,000-gallon capacity of the WGB32B
- 25.8-pound weight is heavier than the 15.4-pound WGB22B
- 2-stage filtration offers fewer stages than the 3-stage WGB31B
- You need a budget-friendly system for basic chlorine and sediment removal
- You want a pre-assembled unit for easy DIY installation
- You prefer water that retains healthy minerals
- You require a 3-stage filtration system for heavy metal reduction
- You need a higher capacity than 50,000 gallons
- You want a lighter unit for easier mounting
Verdict: The iSpring WGB21B 2-Stage Whole House Filter is a practical entry-level option for households seeking basic chlorine and sediment reduction. It suits buyers who prioritize easy installation and mineral retention over higher capacity or advanced multi-stage filtration.
iSpring WGB32B 3-Stage Whole House Filter
Best for: High-flow homes needing chlorine and sediment removal
- Target Contaminant
- Chlorine, Sediment
- Filtration Stages
- 3-Stage
- Target Contaminants
- chlorine, sediment, rust, herbicides
- Filtration Capacity
- 100,000 gallons
- Flow Rate
- up to 15 GPM
- Port Size
- 1" NPT
The iSpring WGB32B is a 3-stage whole house system designed to eliminate up to 99% of chlorine, sediment, rust, and herbicides. It features a 100,000-gallon capacity and supports flow rates up to 15 GPM through 1-inch NPT ports. This unit suits households needing robust chlorine reduction and high-volume water delivery without removing healthy minerals.
- Reduces up to 99% of chlorine
- 100,000-gallon filtration capacity
- Supports flow rates up to 15 GPM
- 3-stage filtration with 5-micron sediment pre-filter
- Heavier build at 45 pounds
- Larger footprint with 27.8-inch height
- Lower capacity than the 50,000-gallon WGB21B
- You need high flow rates for large homes
- You want to reduce chlorine and sediment
- You prefer a 3-stage filtration setup
- You have limited vertical installation space
- You want a lighter, easier-to-move unit
- You need a system with a smaller footprint
Verdict: iSpring WGB32B 3-Stage Whole House Filter offers high capacity and flow for chlorine removal. It fits homes with space for a 45-pound unit and a need for 15 GPM output.
iSpring WGB32BM Iron & Manganese Whole House Filter
Best for: iron and manganese removal with chlorine filtration
- Target Contaminant
- Chlorine, Sediment, Iron, Manganese
- Filtration Stages
- 3-Stage
- Target Contaminants
- iron, manganese, chlorine, sediment
- Filtration Capacity
- 100,000 Gal.
- Flow Rate
- up to 15 GPM
- Port Size
- 1 in. NPT
The iSpring WGB32BM is a three-stage whole house water filter designed to remove iron, manganese, chlorine, and sediment. It features a 15 GPM flow rate and 1-inch NPT ports for standard home plumbing. The system includes a catalytic media stage for iron reduction and two NSF/ANSI tested stages with a 100,000-gallon capacity. This unit suits households with specific iron and manganese issues alongside general chlorine concerns.
- Reduces iron up to 3.0 ppm and manganese up to 1.0 ppm
- High flow rate of up to 15 GPM
- 100,000-gallon filtration capacity per cartridge
- Three-stage filtration with sediment, carbon, and catalytic media
- Heavier at 55 pounds compared to lighter single-stage options
- Larger physical footprint at 28 inches tall
- Does not reduce Total Dissolved Solids (TDS)
- You need to reduce iron and manganese in addition to chlorine
- You want a high-flow system for multiple bathrooms
- You prefer a three-stage filtration approach
- You require TDS reduction for drinking water
- You have limited space for a larger filter housing
- You only need basic chlorine and sediment removal
Verdict: iSpring WGB32BM Whole House Filter is a robust solution for homes dealing with iron and manganese contamination. It provides high capacity and flow, making it ideal for families needing comprehensive whole-house treatment beyond simple chlorine removal.
iSpring WGB31B-KS Heavy Metals System
Best for: homes needing lead and mercury reduction
- Target Contaminant
- Chlorine, Lead, Sediment, Heavy Metals, Hydrogen Sulfide
- Filtration Stages
- 3-stage
- Filtration Capacity
- 50,000 gallons
- Flow Rate
- Up to 15 GPM
- Port Size
- 1" NPT
- Cartridge Dimensions
- 10" x 4.5"
This three-stage whole house filter reduces chlorine, lead, and mercury. It uses GAC+KDF media and a carbon block to treat up to 50,000 gallons. The system supports flow rates up to 15 GPM through 1-inch NPT ports. You get healthy mineral retention without lowering TDS. It suits homes needing heavy metal reduction alongside standard chlorine removal.
- Three-stage filtration reduces chlorine, lead, and mercury
- High flow rate up to 15 GPM
- 50,000-gallon filtration capacity
- Retains healthy minerals in water
- Uses standard 10-inch x 4.5-inch cartridges
- Weighs 27.2 pounds, adding bulk to your installation space
- Dimensions of 24.5 inches in length require more clearance than compact models
- 1-inch port size may not fit all existing plumbing without adapters
- You need to reduce heavy metals like lead and mercury
- You want to retain healthy minerals in your water
- You have standard 1-inch NPT plumbing connections
- You require a system that lowers total dissolved solids
- You have limited space for a 24.5-inch long unit
- You only need basic sediment and chlorine removal
Verdict: iSpring WGB31B-KS Heavy Metals System delivers robust heavy metal reduction with a 15 GPM flow rate. It fits homes prioritizing lead and mercury removal while keeping beneficial minerals in the water.
iSpring WHO32BM Horizontal Whole House Filter
Best for: homes needing iron, manganese, and chlorine removal
- Target Contaminant
- Chlorine, Sediment, Iron, Manganese
- Target Contaminants
- Iron, manganese, chlorine, sediment
- Flow Rate
- up to 15 GPM
- Cartridge Dimensions
- 20" x 4.5"
- Installation Type
- Whole House
- Dimensions
- 25.5 × 9.1 × 29.7 inches
The iSpring WHO32BM reduces iron, manganese, chlorine, and sediment using standard 20" x 4.5" cartridges. It delivers up to 15 GPM for homes or light commercial use. The horizontal design with drain valves simplifies filter changes. You get a freestanding metal frame that requires no wall mounting. This system retains healthy minerals while filtering up to 100,000 gallons.
- High flow rate of up to 15 GPM
- Horizontal housings with built-in drain valves for easy maintenance
- Uses universal 20" x 4.5" industry-standard cartridges
- Freestanding metal frame requires no wall mounting
- Freestanding frame occupies more floor space than wall-mounted systems
- Requires manual draining to change filters instead of quick-connects
- You want to reduce iron and manganese alongside chlorine
- You prefer horizontal filters for easier maintenance access
- You need a high flow rate for large homes
- You have limited floor space for a freestanding unit
- You only need chlorine reduction without iron or manganese
- You want a compact vertical system for tight spaces
Verdict: The iSpring WHO32BM Horizontal Whole House Filter is a practical choice for homes with high iron and manganese levels that need strong flow. It suits buyers who value easy filter changes and flexible placement over a wall-mounted footprint.
iSpring WGB32B Heavy Metal Whole House Filter
Best for: Heavy metal and lead reduction in homes
- Target Contaminant
- Chlorine, Lead, Sediment, Heavy Metals, Hydrogen Sulfide
- Target Contaminants
- Lead, chlorine, mercury, sediments
- Filtration Capacity
- 100,000 gallons
- Flow Rate
- Up to 15 GPM
- Port Size
- 1” NPT
- Micron Rating
- 5 microns
This three-stage whole house system targets lead, chlorine, and heavy metals. It features a 5-micron first stage and a 100,000-gallon capacity. The unit handles up to 15 GPM through 1-inch NPT ports. It retains healthy minerals while removing harmful chemicals. You get durable coconut shell carbon and polypropylene sediment filters. This setup suits families needing broad contaminant reduction without reducing total dissolved solids.
- Reduces lead, chlorine, mercury, and hydrogen sulfide
- 100,000-gallon filtration capacity per cartridge
- High flow rate of up to 15 GPM
- 1-inch NPT inlet and outlet ports
- Retains healthy minerals in water
- Heavier build at 52 pounds
- Larger footprint measuring 27.8 inches long
- Does not reduce Total Dissolved Solids
- You need to reduce lead and heavy metals
- You want high flow rates for multiple fixtures
- You prefer retaining healthy minerals in water
- You need to reduce Total Dissolved Solids
- You have limited space for a 52-pound unit
- You only need basic chlorine reduction
Verdict: iSpring WGB32B-KS Heavy Metals Filter offers robust contaminant removal for families prioritizing lead and heavy metal reduction. It fits homes with space for a heavier unit and a need for high flow rates.
iSpring WGB22B 2-Stage Whole House Filter
Best for: Chlorine reduction with standard filter replacements
- Target Contaminant
- Chlorine, Sediment
- Filtration Stages
- 2-Stage
- Target Contaminants
- chlorine, sediment, rust, herbicides
- Filtration Capacity
- up to 100,000 gallons
- Port Size
- 1” FNPT
- Micron Rating
- 5 microns
The iSpring WGB22B is a 2-stage whole house filtration system designed to reduce chlorine, sediment, rust, and herbicides. It uses standard 20” x 4.5” filter cartridges and features 1” FNPT connections. The system holds up to 100,000 gallons of filtered water. It retains healthy minerals and includes a heavy-duty wrench for DIY installation. This model suits homes needing reliable, budget-friendly chlorine removal with easy maintenance.
- Reduces up to 99% of chlorine
- Uses widely available 20” x 4.5” standard filters
- 100,000-gallon filtration capacity
- 1” FNPT connections for standard plumbing
- Retains healthy minerals in water
- 2-stage filtration offers fewer stages than many competitors
- 5-micron sediment rating is coarser than finer options
- 36-pound weight is bulkier than lighter single-stage units
- You want to reduce chlorine and sediment from your home water supply
- You prefer using standard, easy-to-find replacement filters
- You need a system with a 100,000-gallon capacity for long-term use
- You require removal of heavy metals or iron without a specialized stage
- You need a compact system under 30 pounds for tight spaces
- You want a 3-stage system for multi-contaminant protection
Verdict: iSpring WGB22B 2-Stage Whole House Filter is a solid choice for households prioritizing chlorine reduction and easy filter maintenance. It fits homes that value standard parts and high capacity over multi-stage complexity.
iSpring WF150K Smart Valve System
Best for: Automated chlorine and heavy metal removal
- Target Contaminant
- Chlorine, Heavy Metals
- Target Contaminants
- Chlorine, lead, heavy metals, VOCs
- Installation Type
- Whole House
- Dimensions
- 11 × 11 × 63.5 inches
- Weight
- 69 pounds
This iSpring WF150K system targets chlorine, lead, heavy metals, and VOCs using a patented media formula. It features a set-and-forget smart valve that automatically back-flushes and regenerates the filter. The unit stands 63.5 inches tall and weighs 69 pounds. It is designed to last up to 10 years for homes with 2-3 bathrooms. You get clean water throughout your home with minimal maintenance required.
- Removes chlorine, lead, heavy metals, and VOCs
- Automated back-flush and regeneration via smart valve
- Lasts up to 10 years for smaller households
- Digital screen allows custom flush intervals
- Protects plumbing and appliances from contaminants
- Heavier build at 69 pounds compared to cartridge systems
- Taller footprint at 63.5 inches requires more vertical space
- Limited to 7 color options for aesthetic matching
- You want automated maintenance without manual cartridge changes
- You need protection for lead and heavy metals alongside chlorine
- You have space for a tall, heavy unit near your main water entry
- You prefer lightweight, easy-to-move filter cartridges
- You have limited vertical space for a 63.5-inch unit
- You only need basic chlorine removal without heavy metal filtration
Verdict: iSpring WF150K Smart Whole House Filter suits households prioritizing automated maintenance and broad contaminant removal. It fits buyers who want a long-lasting, set-and-forget solution for chlorine and heavy metals.
iSpring WCB32C 3-Stage Clear Housing System
Best for: 3/4-inch connections and visual maintenance
- Target Contaminant
- Chlorine, Sediment
- Filtration Stages
- 3-stage
- Target Contaminants
- Chlorine, sediment, rust, herbicides
- Filtration Capacity
- 30,000 gal.
- Port Size
- 3/4" NPT
- Micron Rating
- 5 microns
The iSpring WCB32C is a 3-stage whole house system designed to reduce chlorine, sediment, and rust. It features 3/4-inch NPT connections and 20-inch cartridges. The clear first-stage housing lets you monitor buildup. It holds 30,000 gallons, lasting up to six months for a family of four. This unit retains essential minerals while filtering contaminants.
- 3/4-inch NPT inlet and outlet connections
- 30,000-gallon filtration capacity
- Clear first-stage housing for visual monitoring
- 3-stage filtration with coconut shell carbon
- 30,000-gallon capacity is lower than some competitors offering 50,000 gallons
- 24.8-inch height is taller than some compact 20-inch systems
- 5-micron sediment rating is standard rather than ultra-fine
- You need 3/4-inch connections for your main supply line
- You want to visually check filter buildup
- You prefer a system that retains essential minerals
- You require 1-inch inlet and outlet connections
- You need a capacity exceeding 30,000 gallons
- You prefer a completely opaque housing design
Verdict: The iSpring WCB32C 3-Stage Whole House Filter suits homes with 3/4-inch lines that value visual maintenance cues. It provides reliable chlorine reduction for families seeking standard capacity and mineral retention.
iSpring WGB32B-KDS Anti-Scale System
Best for: Scale prevention and chlorine removal
- Target Contaminant
- Chlorine, Lead, Scale, Hydrogen Sulfide
- Target Contaminants
- Scale, lead, chlorine
- Filtration Capacity
- 250,000 gallons
- Flow Rate
- 15 GPM
- Port Size
- 1-inch NPT
- Cartridge Dimensions
- 20" x 4.5"
This iSpring system targets scale, lead, and chlorine with a three-stage filtration setup. It offers a high 15 GPM flow rate through 1-inch NPT ports. The unit holds up to 250,000 gallons of capacity before needing cartridge changes. Its compact 8-inch width fits standard utility spaces. You get durable construction with a 55-pound build. It suits homes needing strong scale inhibition and broad contaminant removal.
- Reduces up to 99% of chlorine
- High 15 GPM flow rate
- 250,000-gallon filtration capacity
- Compact 8-inch width design
- 55-pound weight requires sturdy mounting
- 28-inch height needs vertical clearance
- 24.5-inch length extends into utility space
- You need to prevent scale buildup in pipes
- You want to remove lead and chlorine
- You have space for a 28-inch tall unit
- You have limited vertical clearance below 28 inches
- You cannot support a 55-pound unit
- You only need sediment filtration
Verdict: iSpring WGB32B-KDS Scale Defense System effectively protects pipes from scale and removes chlorine for families needing high capacity. It fits homes with adequate vertical space and a sturdy mounting location.
iSpring WGB31B 3-Stage 10-Inch Filter
Best for: small homes with tight spaces
- Target Contaminant
- Chlorine, Sediment
- Filtration Stages
- 3-stage
- Target Contaminants
- chlorine, sediment, rust, herbicides
- Filtration Capacity
- up to 50,000 gallons
- Flow Rate
- up to 15 GPM
- Port Size
- 1" NPT
The iSpring WGB31B is a compact 3-stage whole house filter designed for tight spaces. It uses 10" x 4.5" cartridges to reduce up to 99% of chlorine, sediment, and rust. With a 1" NPT port size and a flow rate of up to 15 GPM, it suits smaller homes or apartments. The system holds up to 50,000 gallons before needing a filter change.
- 3-stage filtration removes chlorine and sediment
- High flow rate of up to 15 GPM
- Compact 10" x 4.5" filter cartridges
- Built-in pressure release buttons for easy changes
- Retains healthy minerals in water
- Smaller 10" x 4.5" filter capacity compared to 20" systems
- Heavier at 27.2 pounds for its compact size
- Limited to 1" inlet and outlet ports
- You have limited space for installation
- You need high flow for multiple fixtures
- You want to retain healthy minerals
- You require 20" filter cartridges
- You need 3/4" or larger ports
- You want PFAS removal
Verdict: iSpring WGB31B 3-Stage Chlorine Filter fits smaller homes needing high flow in tight spaces. It delivers reliable chlorine reduction without complex installation.
iSpring WGB22B Stainless Steel Whole House Filter
Best for: chlorine and sediment removal with stainless steel fittings
- Target Contaminant
- Chlorine, Sediment
- Filtration Stages
- 2-Stage
- Target Contaminants
- Chlorine, sediment
- Filtration Capacity
- up to 100,000 gallons
- Port Size
- 1-inch
- Micron Rating
- 5-micron
This iSpring WGB22B system uses a 2-stage design to remove chlorine and sediment from your home water supply. It features 1-inch inlet and outlet ports for fast flow and uses braided stainless steel connectors for durability. The system holds up to 100,000 gallons of capacity per year. Its compact 20-inch by 4.5-inch cartridges fit standard housings, making maintenance straightforward for most households.
- Braided stainless steel hose connectors with integrated ball valves
- 1-inch inlet and outlet ports for minimal pressure loss
- Removes over 90% of chlorine and sediment
- 100,000-gallon annual filtration capacity
- Includes wrench and pressure release valve for easy changes
- Heavier build at 29 pounds compared to lighter plastic models
- Smaller 100,000-gallon capacity than some 3-stage competitors
- 2-stage filtration offers fewer contaminant reduction stages than 3-stage options
- You need durable stainless steel hose connections for your plumbing
- You want a straightforward 2-stage system for chlorine and sediment
- You prefer a system with included installation tools and valves
- You require removal of heavy metals or iron and manganese
- You need a 3-stage filtration system for broader contaminant coverage
- You prefer a lighter unit under 20 pounds for easier mounting
Verdict: iSpring WGB22B Stainless Steel Whole House Filter provides reliable chlorine reduction with durable stainless steel connections. It suits homeowners who prioritize connector strength and simple 2-stage maintenance over multi-stage contaminant removal.
03 Specifications side by side
| Spec | iSpring FC25B-PB Lead Removal Filter | iSpring WGB21B 2-Stage Whole House Filter | iSpring WGB32B 3-Stage Whole House Filter | iSpring WGB32BM Iron & Manganese Whole House Filter | iSpring WGB31B-KS Heavy Metals System | iSpring WHO32BM Horizontal Whole House Filter | iSpring WGB32B Heavy Metal Whole House Filter | iSpring WGB22B 2-Stage Whole House Filter | iSpring WF150K Smart Valve System | iSpring WCB32C 3-Stage Clear Housing System | iSpring WGB32B-KDS Anti-Scale System | iSpring WGB31B 3-Stage 10-Inch Filter | iSpring WGB22B Stainless Steel Whole House Filter |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Filtration Stages | – | 2-Stage | 3-Stage | 3-Stage | 3-stage | – | – | 2-Stage | – | 3-stage | – | 3-stage | 2-Stage |
| Target Contaminants | Lead, chlorine, arsenic, mercury | chlorine, sediment, dirt, rust | chlorine, sediment, rust, herbicides | iron, manganese, chlorine, sediment | – | Iron, manganese, chlorine, sediment | Lead, chlorine, mercury, sediments | chlorine, sediment, rust, herbicides | Chlorine, lead, heavy metals, VOCs | Chlorine, sediment, rust, herbicides | Scale, lead, chlorine | chlorine, sediment, rust, herbicides | Chlorine, sediment |
| Filtration Capacity | Up to 100,000 gallons | 50,000 gallons | 100,000 gallons | 100,000 Gal. | 50,000 gallons | – | 100,000 gallons | up to 100,000 gallons | – | 30,000 gal. | 250,000 gallons | up to 50,000 gallons | up to 100,000 gallons |
| Flow Rate | – | – | up to 15 GPM | up to 15 GPM | Up to 15 GPM | up to 15 GPM | Up to 15 GPM | – | – | – | 15 GPM | up to 15 GPM | – |
| Port Size | – | 1" | 1" NPT | 1 in. NPT | 1" NPT | – | 1” NPT | 1” FNPT | – | 3/4" NPT | 1-inch NPT | 1" NPT | 1-inch |
| Micron Rating | – | 5-micron | 5 microns | 5 microns | – | – | 5 microns | 5 microns | – | 5 microns | – | – | 5-micron |
| Cartridge Dimensions | 20" x 4.5" | 10" x 4.5" | 20" x 4.5" | 20 in. x 4.5 in. | 10" x 4.5" | 20" x 4.5" | 20” x 4.5” | 20” x 4.5” | – | 20" x 2.5" | 20" x 4.5" | 10" x 4.5" | 20"x4.5" |
| Installation Type | Whole House | Whole House | Whole House | Whole House | Whole House | Whole House | Whole House | Whole House | Whole House | Whole House | Whole House | Whole House | Whole House |
| Target Contaminant | Chlorine, Lead | Chlorine, Sediment | Chlorine, Sediment | Chlorine, Sediment, Iron, Manganese | Chlorine, Lead, Sediment, Heavy Metals, Hydrogen Sulfide | Chlorine, Sediment, Iron, Manganese | Chlorine, Lead, Sediment, Heavy Metals, Hydrogen Sulfide | Chlorine, Sediment | Chlorine, Heavy Metals | Chlorine, Sediment | Chlorine, Lead, Scale, Hydrogen Sulfide | Chlorine, Sediment | Chlorine, Sediment |
| Number of Stages | – | 2-Stage | – | – | – | – | – | 2-Stage | – | – | – | – | 2-Stage |
| Material | – | – | – | – | – | – | – | – | – | – | – | – | Stainless Steel |
| Intended Use | – | – | – | – | – | – | – | – | – | – | – | – | Home |
| Dimensions | 4.5 × 4.5 × 10 inches | 26 × 19 × 11 inches | 24.3 × 7.75 × 27.8 inches | 24.3 × 7.75 × 27.8 inches | 24.5 × 8 × 18 inches | 25.5 × 9.1 × 29.7 inches | 27.8 × 7.75 × 24.3 inches | 16.3 × 7.75 × 27.8 inches | 11 × 11 × 63.5 inches | 17.5 × 6.5 × 24.8 inches | 24.5 × 8 × 28 inches | 24.5 × 8 × 18 inches | 9 × 16 × 31 inches |
| Weight | 5 pounds | 25.8 pounds | 45 pounds | 55 pounds | 27.2 pounds | – | 52 pounds | 36 pounds | 69 pounds | – | 55 pounds | 27.2 pounds | 29 pounds |
| Size | 1 | Standard Series | – | 28" x 24.5" x 8" | – | – | 24.5" x 28"x8" | 16.25 x 7.75 x 27.75 inches | – | – | – | – | 20" Water Filtration System |
| Color | White | Organe & Green – Sediment & Chlorine | Blue – Chlorine | Blue | – | Blue | Blue | Blue | Black – Heavy Metal & s Chlorine | Multi | Blue | – | blue |
| Model | FC25B-PB | 1 | WGB32B | WGB32BM | WGB31B-KS | WHO32BM | WGB32B-KS | WGB22B | WF150K | WCB32C | WGB32B-KDS | WGB31B | WGB22B+AHPF12MNPT16X2 |
If you need to filter contaminants beyond chlorine, compare specifications for the best iSpring whole house water treatments.
04 Key Specs for Choosing iSpring Filters
Check flow rate needs
Flow rate determines how well the system supports multiple water sources. If you run showers and appliances simultaneously, you need higher capacity. The WGB32B and WGB31B-KS models offer 15 GPM output. This ensures consistent pressure even when several fixtures are active. Lower flow systems may cause pressure drops during peak usage. Match your household size to the rated gallons per minute to avoid inconvenience.
Assess physical space
Whole house filters require dedicated space in your utility area or garage. Dimensions vary significantly across the lineup. The FC25B-PB is compact at 4.5 by 10 inches. Larger systems like the WGB32B measure 24.3 by 27.8 inches. Verify your available width and height before purchasing. The WHO32BM offers a horizontal footprint for tight vertical spaces. Measure your installation spot to ensure the unit fits without blocking access.
Review contaminant targets
Different models address specific water quality issues beyond basic chlorine. If your supply contains iron or manganese, select a system designed for those metals. The WGB32BM and WHO32BM target iron and manganese reduction. For lead removal, the FC25B-PB and WGB31B-KS are appropriate choices. Check the target contaminant list on the spec sheet. Choosing a filter for the wrong contaminants wastes money and reduces effectiveness.
Consider connection size
Port size must match your home's main water line. Most standard homes use 1-inch ports. The WGB21B, WGB32B, and WGB31B feature 1-inch connections. If your plumbing is smaller, the WCB32C uses 3/4-inch ports. Installing a mismatched system requires adapters or pipe replacement. Verify your inlet pipe diameter before buying. This simple check prevents costly modifications during installation and ensures a secure, leak-free fit.
Evaluate filtration stages
The number of stages affects filtration complexity and maintenance. Two-stage systems like the WGB21B handle basic sediment and chlorine. Three-stage units such as the WGB32B add another layer of protection. More stages often mean higher capacity and broader contaminant removal. However, they also increase the unit's weight and size. The WGB31B offers three stages in a smaller footprint. Choose based on your water quality and space constraints.
Check weight and mounting
Heavier systems require sturdy mounting to support the filled weight. The WF150K Smart Valve System weighs 69 pounds. The WGB32BM tips the scales at 55 pounds. Ensure your wall or floor can support these loads. Lighter models like the FC25B-PB weigh only 5 pounds. They are easier to handle and install. Always verify the empty and filled weight specifications. Proper mounting prevents stress on pipes and ensures long-term stability.
05 Frequently asked questions
Which iSpring whole house filter removes chlorine and lead?
The iSpring FC25B-PB Lead Removal Filter is designed for this specific need. It targets both chlorine and lead contaminants in a compact 10-inch form factor. This system fits standard housings and offers 100,000 gallons of capacity. It allows you to reduce heavy metals without switching to a reverse osmosis setup. The unit measures 4.5 by 10 inches and weighs 5 pounds.
What is the best budget iSpring system for chlorine reduction?
The iSpring WGB21B 2-Stage Whole House Filter serves as a practical entry-level option. It handles basic chlorine and sediment reduction effectively. This model suits buyers who prioritize easy installation and mineral retention. It features 1-inch port sizes for standard plumbing connections. The system weighs 25.8 pounds and includes two filtration stages for consistent performance.
Which iSpring filter has the highest flow rate for chlorine?
Several models support high flow rates suitable for busy households. The iSpring WGB32B and WGB31B-KS systems offer 15 GPM output. The WGB31B-KS Heavy Metals System delivers this flow while also targeting lead and mercury. These units ensure consistent water pressure when multiple sources are active. Check your home’s space requirements, as these systems are larger and heavier.
Can iSpring filters remove iron and manganese along with chlorine?
Yes, specific models address these contaminants alongside chlorine. The iSpring WGB32BM and WHO32BM filters target iron and manganese. The WHO32BM is a horizontal unit suitable for homes with high levels of these metals. It also removes sediment and chlorine. The WGB32BM provides high capacity for comprehensive whole-house treatment beyond simple filtration needs.
Do iSpring whole house filters retain beneficial minerals?
Most iSpring systems retain beneficial minerals while removing harmful contaminants. The WGB21B and WGB32B models are noted for mineral retention. The WGB31B-KS Heavy Metals System also keeps minerals in the water. This approach maintains water taste and quality. You get effective chlorine and sediment removal without stripping essential elements from your supply.
Which iSpring system is best for homes with hard water scale?
The iSpring WGB32B-KDS Anti-Scale System is designed for scale prevention. It effectively protects pipes from scale buildup while removing chlorine. This model targets lead, hydrogen sulfide, and scale contaminants. It requires adequate vertical space and a sturdy mounting location. The unit weighs 55 pounds and features 1-inch port sizes for standard connections.
Is there an iSpring filter with a clear housing for monitoring?
The iSpring WCB32C 3-Stage Clear Housing System features a transparent design. This allows you to visually monitor filter status and maintenance needs. It is suitable for homes with 3/4-inch pipe connections. The system provides reliable chlorine reduction and sediment removal. It retains beneficial minerals while offering standard capacity for typical household use.
Which iSpring filter offers automated maintenance for chlorine removal?
The iSpring WF150K Smart Valve System provides automated maintenance capabilities. It targets chlorine and heavy metals for a set-and-forget solution. This unit is designed for long-lasting performance with minimal manual intervention. It weighs 69 pounds and stands 63.5 inches tall. The system suits households prioritizing automated operation and broad contaminant removal.
