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Finding the best AFWFilters water softeners requires looking at published specs rather than marketing claims. This guide compares 8 models to help you choose based on capacity and features. AFWFilters offers whole-house units in various sizes, primarily using black Fleck valves and resin media. The top pick is the AFWFilters 48k Grain Black Softener, which leads for standard homes with moderate hardness due to its reliable valve and durable media. Each selection relies strictly on the specifications listed on the product pages.
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | AFWFilters 48k Grain Black Softener Best overall | standard homes with moderate hardness | |
| 2 | AFWFilters 48K Black Water Softener Best budget | average homes needing chlorine-resistant softening | |
| 3 | AFWFilters 48k Grain Black Softener with Carbon Best premium | Small homes needing softening and carbon filtration | |
| 4 | AFWFilters 80k Grain Water Softener Also great | Large homes needing efficient high capacity | |
| 5 | AFW Filters Fleck 5600SXT 48k Grain Also great | Medium households wanting softening and carbon filtration | |
| 6 | AFWFilters Fleck 9100SXT Dual Tank Also great | High-demand households needing continuous soft water | |
| 7 | AFWFilters Fleck 5600SXT 48k Softener Also great | Small homes needing softening and carbon filtration | |
| 8 | AFWFilters Black Series Air Injection Iron Filter Best iron | removing high iron and hydrogen sulfide |
01 AFWFilters Water Softeners at a Glance
Most models in this lineup share a 10-by-54-inch footprint and 48,000-grain capacity. The AFWFilters 48k Grain Black Softener and the 48K Black Water Softener both use the Fleck 5600SXT valve. They suit standard homes with moderate hardness. The 48k Grain Black Softener with Carbon adds filtration for smaller households needing combined treatment. For larger needs, the 80k Grain Water Softener offers higher capacity without dual-tank complexity. The AFWFilters Fleck 9100SXT Dual Tank provides continuous flow for high-demand users. You can choose based on whether you need basic softening or added carbon filtration.
AFWFilters 48k Grain Black Softener
Best for: standard homes with moderate hardness
- Grain Capacity
- 48,000
- Installation Type
- Whole House
- Control Valve
- Fleck 5600SXT
- Media Type
- 10% crosslink resin
- Port Size
- 1" NPT
- Target Contaminant
- Chlorine
This AFWFilters unit delivers 48,000 grains of softening capacity using 1.5 cubic feet of 10% crosslink resin. The Fleck 5600SXT valve controls regeneration cycles for whole-house treatment. It features a 1-inch NPT connection for standard plumbing. The system includes a brine tank with 250 pounds of salt capacity. It suits households needing reliable scale reduction and chlorine resistance.
- 48,000 grain total exchange capacity
- 1.5 cubic feet of 10% crosslink resin
- Fleck 5600SXT digital control valve
- 250-pound salt capacity in brine tank
- 1-inch NPT inlet and outlet ports
- 48,000 grain capacity is lower than 80,000 or 96,000 grain models on this list
- 130-pound weight requires sturdy floor support
- Single tank design limits continuous softening during regeneration
- You have a standard residential plumbing layout with 1-inch pipes
- You want a complete system with included bypass and drain fittings
- You need resin that resists chlorine degradation
- You require dual-tank operation for uninterrupted soft water
- You have very high water usage exceeding 48,000 grains per cycle
- You need a system with a smaller footprint than 10 inches wide
Verdict: AFWFilters 48K Fleck 5600SXT Softener fits homes with moderate water hardness and standard plumbing. It provides dependable whole-house treatment through a proven valve and durable resin media.
AFWFilters 48K Black Water Softener
Best for: average homes needing chlorine-resistant softening
- Grain Capacity
- 48K grain
- Installation Type
- Whole house
- Control Valve
- Digital metered, Fleck 5600SXT
- Media Type
- 10% crosslink resin
- Port Size
- 1" NPT
- Target Contaminant
- Chlorine
This AFWFilters softener uses a Fleck 5600SXT digital metered valve to manage a 48,000-grain capacity. It contains 1.5 cubic feet of 10% crosslink resin, which offers better chlorine resistance than standard 8% media. The system fits standard 1-inch plumbing and includes a 14×36 brine tank. It is a practical choice for households needing reliable whole-house softening with durable, USA-assembled components.
- 48,000-grain capacity for whole-house treatment
- 10% crosslink resin resists chlorine damage
- Fleck 5600SXT digital metered control valve
- 1-inch NPT inlet and outlet connections
- USA-assembled for quality oversight
- 48,000-grain capacity is lower than the 80,000-grain option on this list
- 120-pound weight requires careful handling during installation
- Single tank design limits continuous operation compared to dual-tank models
- You want a budget-friendly softener with reliable digital control
- You need chlorine-resistant resin for municipal water
- You have standard 1-inch plumbing connections
- You need high-capacity softening for very large households
- You prefer uninterrupted soft water during regeneration cycles
- You want a dual-tank system for redundancy
Verdict: AFWFilters 48K Grain Fleck 5600SXT is a solid entry-level softener for average homes. It suits buyers who prioritize resin durability and straightforward digital control over maximum capacity or dual-tank redundancy.
AFWFilters 48k Grain Black Softener with Carbon
Best for: Small homes needing softening and carbon filtration
- Grain Capacity
- 48,000
- Installation Type
- Whole house
- Household Capacity
- 2–5 people
- Control Valve
- Fleck 5600SXT
- Media Type
- 8% resin
- Features
- Carbon Filter
This AFWFilters system combines a 48,000-grain water softener with an upflow carbon filter. It uses 8% resin and is controlled by a Fleck 5600SXT digital valve. The carbon stage removes chlorine, pesticides, and odors without requiring a drain line or electricity. It suits households of two to five people needing whole-house treatment with integrated filtration.
- 48,000 grain ion exchange capacity
- Integrated upflow carbon filtration stage
- Fleck 5600SXT digital control valve
- No drain line required for carbon stage
- 10-year tank warranty included
- Lower 8% resin concentration compared to 10% options on the list
- Smaller 48,000 grain capacity versus the 80,000 grain model
- Smaller 10-inch diameter tank size
- You want whole-house softening with carbon filtration in one unit
- You have a household of two to five people
- You need a system that does not require a drain line for the filter stage
- You have a large household exceeding five people
- You require a higher 80,000 grain capacity for heavy usage
- You prefer a dual-tank configuration for continuous softening
Verdict: AFWFilters 48k Grain Softener with Carbon offers a compact solution for small households needing combined softening and filtration. It fits homes with moderate water usage that want to avoid drain line installation for the carbon stage.
AFWFilters 80k Grain Water Softener
Best for: Large homes needing efficient high capacity
- Grain Capacity
- 80,000
- Installation Type
- Whole house
- Control Valve
- Fleck 5600SXT
- Media Type
- 10% resin
- Dimensions
- 10 × 10 × 54 inches
This AFWFilters unit uses a Fleck 5600SXT metered controller for on-demand regeneration. It holds 80,000 grains of 10% crosslink resin. The black tank measures 10 by 54 inches. This setup suits larger homes needing high capacity. The on-demand feature aims for efficiency by regenerating only when necessary. You get a whole-house system designed for durability.
- 80,000 grain capacity for high demand
- Fleck 5600SXT metered controller
- 10% crosslink resin for durability
- On-demand regeneration efficiency
- 80,000 grain capacity is lower than the 96,000 grain option on this list
- Single tank design offers less redundancy than dual tank models
- 54-inch height requires adequate vertical clearance
- You need a high-capacity system for a large household
- You want on-demand regeneration to save salt and water
- You prefer a standard Fleck 5600SXT controller
- You require a dual tank system for uninterrupted softening
- You need a capacity exceeding 80,000 grains
- You have limited vertical space for a 54-inch tank
Verdict: AFWFilters 80k Grain Water Softener delivers solid capacity and efficient control for large homes. It fits households that prioritize regeneration efficiency over the redundancy of a dual tank setup.
AFW Filters Fleck 5600SXT 48k Grain
Best for: Medium households wanting softening and carbon filtration
- Grain Capacity
- 48,000 grain
- Installation Type
- Whole house
- Household Capacity
- 2–5 people
- Control Valve
- Fleck 5600SXT digital meter
- Media Type
- Purolite C100E resin
- Features
- Carbon Filter
This AFWFilters system combines a 48,000-grain water softener with an upflow carbon filter. It uses a Fleck 5600SXT digital meter valve and Purolite C100E resin. The carbon stage removes chlorine, chloramines, and odors without backwashing. It suits households of 2–5 people needing up to 12 GPM flow. The unit weighs 120 pounds and measures 10 by 54 inches. It includes a 5-year valve warranty and a 10-year tank warranty.
- 48,000-grain capacity with Purolite C100E resin
- Integrated upflow carbon filtration for chlorine and odors
- Fleck 5600SXT digital meter valve for control
- No backwash, electricity, or drain needed for carbon stage
- 5-year valve warranty and 10-year tank warranty
- 48,000-grain capacity is lower than the 80,000-grain and 96,000-grain options on this list
- 120-pound weight requires sturdy floor support
- 10-inch width limits placement in tight spaces
- You have a household of 2–5 people
- You want chlorine and odor removal alongside softening
- You prefer a system without drain lines for the carbon stage
- You need more than 48,000 grains of capacity
- You require a dual-tank setup for uninterrupted softening
- You need a flow rate higher than 12 GPM
Verdict: AFWFilters Fleck 5600SXT 48k Grain Softener fits medium households that want combined softening and filtration without complex plumbing for the carbon stage.
AFWFilters Fleck 9100SXT Dual Tank
Best for: High-demand households needing continuous soft water
- Control Valve
- Fleck 9100SXT
- Media Type
- Purolite C100E resin
- Dimensions
- 10 × 10 × 60 inches
- Weight
- 200 pounds
This system uses a dual-tank design with a Fleck 9100SXT control valve to provide 24/7 uninterrupted soft water. It holds 96,000 grains of capacity using Purolite C100E resin. The unit measures 10 by 10 by 60 inches and weighs 200 pounds. It includes a bypass connection for maintenance. This setup suits households needing constant water supply during regeneration cycles.
- Dual-tank design ensures zero downtime in soft water supply
- 96,000 grain total capacity handles high demand
- Pre-loaded with USA-made Purolite C100E cation resin
- Includes free bypass connection for easy maintenance
- Heavier build at 200 pounds compared to single-tank models
- Taller footprint at 60 inches requires more vertical space
- Larger overall volume due to dual-tank configuration
- You need soft water continuously without interruption
- You have high daily water consumption needs
- You want to prevent scale buildup in pipes and appliances
- You have limited vertical space for a 60-inch unit
- You cannot support a 200-pound weight
- You prefer a simpler single-tank installation
Verdict: AFWFilters Fleck 9100SXT Dual Tank delivers constant soft water through its dual-tank architecture. It fits large households that prioritize uninterrupted flow and high capacity over a compact footprint.
AFWFilters Fleck 5600SXT 48k Softener
Best for: Small homes needing softening and carbon filtration
- Grain Capacity
- 48,000 grains
- Installation Type
- Whole house
- Household Capacity
- 2–5 people
- Control Valve
- Fleck 5600SXT
- Media Type
- 10% resin
- Features
- Carbon Filter
This AFWFilters system pairs a 48,000-grain water softener with an upflow carbon filter. It uses a Fleck 5600SXT digital valve and 10% crosslink resin. The carbon stage removes chlorine, chloramines, and odors without needing a drain or electricity. It suits households of 2–5 people. The package includes a flex line, sanitizer, and test strips for installation.
- 48,000-grain ion exchange capacity
- Upflow carbon filtration removes chlorine and chloramines
- Fleck 5600SXT digital control valve
- No drain or electricity required for carbon stage
- Includes 24-inch flex line for assembly
- 48,000-grain capacity is lower than the 80,000-grain option on this list
- 96,000-grain total capacity is available in the dual-tank model
- 10-inch tank width may limit placement in tight spaces
- You have a household of 2–5 people
- You want chlorine and odor removal alongside softening
- You prefer a system that does not require a drain line for the filter stage
- You need more than 48,000 grains of softening capacity
- You require a dual-tank system for uninterrupted softening
- You have a very large household exceeding 5 people
Verdict: AFWFilters Fleck 5600SXT 48K Grain Softener works well for small to medium homes that need basic contaminant removal. It fits buyers who want a complete package with carbon filtration and do not need high-volume softening.
AFWFilters Black Series Air Injection Iron Filter
Best for: removing high iron and hydrogen sulfide
- Control Valve
- Fleck 5600SXT
- Media Type
- Catalytic carbon
- Port Size
- 1"
- Target Contaminant
- Iron, Manganese
- Dimensions
- 10 × 10 × 54 inches
- Weight
- 90 pounds
This AFWFilters Black Series unit targets iron, manganese, and hydrogen sulfide using catalytic carbon media and a Fleck 5600SXT control valve. It utilizes air injection to super oxidize water for effective filtration. The system features a 1-inch port size and weighs 90 pounds. It suits homeowners dealing with specific water quality issues like high iron content, offering a DIY-friendly installation process with included instructions.
- Removes up to 12 ppm iron
- Uses catalytic carbon media
- Includes Fleck 5600SXT control valve
- Handles up to 10 ppm hydrogen sulfide
- Heavier build at 90 pounds
- Single tank design with 12-inch height
- Limited to 1-inch or 0.75-inch connections
- You need to remove high levels of iron
- You want a system with catalytic carbon media
- You prefer a DIY installation with instructions
- You require a dual tank setup
- You need to handle over 12 ppm iron
- You prefer a pre-assembled unit without DIY
Verdict: AFWFilters Black Series Air Injection Iron Filter is a solid choice for homes with significant iron and hydrogen sulfide issues. It delivers targeted filtration through air injection and catalytic carbon, making it ideal for those willing to handle a heavier, single-tank system.
02 Specifications side by side
| Spec | AFWFilters 48k Grain Black Softener | AFWFilters 48K Black Water Softener | AFWFilters 48k Grain Black Softener with Carbon | AFWFilters 80k Grain Water Softener | AFW Filters Fleck 5600SXT 48k Grain | AFWFilters Fleck 9100SXT Dual Tank | AFWFilters Fleck 5600SXT 48k Softener | AFWFilters Black Series Air Injection Iron Filter |
|---|---|---|---|---|---|---|---|---|
| Grain Capacity | 48,000 | 48K grain | 48,000 | 80,000 | 48,000 grain | – | 48,000 grains | – |
| Installation Type | Whole House | Whole house | Whole house | Whole house | Whole house | – | Whole house | – |
| Household Capacity | – | – | 2–5 people | – | 2–5 people | – | 2–5 people | – |
| Control Valve | Fleck 5600SXT | Digital metered, Fleck 5600SXT | Fleck 5600SXT | Fleck 5600SXT | Fleck 5600SXT digital meter | Fleck 9100SXT | Fleck 5600SXT | Fleck 5600SXT |
| Media Type | 10% crosslink resin | 10% crosslink resin | 8% resin | 10% resin | Purolite C100E resin | Purolite C100E resin | 10% resin | Catalytic carbon |
| Port Size | 1" NPT | 1" NPT | – | – | – | – | – | 1" |
| Capacity | 48,000 Grain | 48,000 Grain | 48,000 Grain | – | 48,000 Grain | – | 48,000 Grain | – |
| Features | – | – | Carbon Filter | – | Carbon Filter | – | Carbon Filter | – |
| Target Contaminant | Chlorine | Chlorine | – | – | – | – | – | Iron, Manganese |
| Dimensions | 10 × 10 × 54 inches | 10 × 10 × 54 inches | 10 × 10 × 54 inches | 10 × 10 × 54 inches | 10 × 10 × 54 inches | 10 × 10 × 60 inches | 10 × 10 × 54 inches | 10 × 10 × 54 inches |
| Weight | 130 pounds | 120 pounds | – | – | 120 pounds | 200 pounds | – | 90 pounds |
| Size | 48,000 | – | – | 80,000 Grains | – | – | – | 1 Inch |
| Color | Black | Black | Black | Black | Black | – | Black | Black |
| Model | WS48-56SXT-10 | 5600sxt | 56SXT | 80k | 5600sxt | 9100sxt | combo carbon | 5600sxt |
03 Who AFWFilters Range Suits
AFWFilters covers small to large homes through a consistent size range. Most units share a 10-by-54-inch footprint and 48,000-grain capacity. You can choose from single-tank models with carbon filtration or high-capacity 80,000-grain softeners. The dual-tank option provides continuous flow for high-demand households. A dedicated air injection filter handles iron and hydrogen sulfide. The lineup lacks compact under-sink units or smart app connectivity. If you need whole-house treatment with standard plumbing, this brand fits your needs.
If your setup requires a different capacity or valve type, you can compare afwfilters 48k grain water softener alternatives.
04 How to choose the right one
Check grain capacity needs
Grain capacity determines how much hardness the unit removes before regeneration. Most models here offer 48,000 grains, which suits standard homes with moderate water hardness. If you have a larger household or higher usage, consider the 80,000-grain model for more efficient operation. Higher capacity means fewer regeneration cycles, which saves water and salt over time. Match this number to your daily water usage and hardness level for the best performance.
Select the right valve
The control valve manages the regeneration cycle. Most units use the Fleck 5600SXT, a reliable digital valve that adjusts settings based on usage. The dual-tank option uses the Fleck 9100SXT for continuous flow. This valve type is standard in the industry and offers straightforward programming. Ensure the valve matches your plumbing setup and desired automation level. The 5600SXT provides a solid balance of control and durability for most residential applications.
Decide on filtration stages
Some units combine softening with carbon filtration to remove chlorine and other contaminants. If you need both soft water and filtered water, choose a model with a carbon filter feature. This adds a layer of protection without requiring a separate system. Note that carbon filters have a lifespan and may need replacement. If you only need softening, a basic softener without carbon is sufficient and simpler to maintain.
Consider continuous flow needs
Single-tank systems regenerate periodically, which can interrupt soft water supply. If you need uninterrupted soft water, the dual-tank model provides constant flow. One tank softens while the other regenerates, ensuring you never run out of soft water. This setup is ideal for high-demand households. However, it requires more space and a higher initial investment. Evaluate your household’s water usage patterns to see if continuous flow is necessary for your daily routine.
Check physical dimensions
Most softeners here share a compact 10-by-54-inch footprint, making them easy to fit in utility rooms or garages. The dual-tank model is slightly taller at 60 inches. Ensure your installation space can accommodate the height and width. Also, consider the weight, which ranges from 90 to 200 pounds depending on the model. Verify that your floor can support the weight, especially when the tank is filled with water and resin.
Match target contaminants
Different models target specific contaminants. Standard softeners focus on hardness minerals, while iron filters target iron and hydrogen sulfide. If you have significant iron issues, choose the air injection iron filter. It uses catalytic carbon and air injection to remove these contaminants effectively. For general hardness, a standard softener is sufficient. Identify your primary water quality issue first to select the correct unit type for your home.
05 Frequently asked questions
What is the best AFWFilters water softener for standard homes?
The AFWFilters 48k Grain Black Softener is the top pick for standard homes with moderate hardness. It uses a proven Fleck 5600SXT valve and durable resin media for dependable whole-house treatment. The unit measures 10 by 54 inches and weighs 130 pounds, fitting typical plumbing setups without requiring excessive space.
Which AFWFilters model is best for removing iron?
The AFWFilters Black Series Air Injection Iron Filter is designed for homes with significant iron and hydrogen sulfide issues. It uses air injection and catalytic carbon for targeted filtration. This single-tank system weighs 90 pounds and measures 10 by 54 inches, making it a solid choice for specific contaminant removal.
Do AFWFilters softeners include carbon filtration?
Several models combine softening with carbon filtration for added contaminant removal. The 48k Grain Black Softener with Carbon, the Fleck 5600SXT 48k Grain, and the Fleck 5600SXT 48K Grain Softener all feature this capability. These units help address basic contaminants alongside hardness, offering a complete package for small to medium homes.
Which AFWFilters softener is best for large households?
The AFWFilters 80k Grain Water Softener delivers high capacity for large homes needing efficient operation. It prioritizes regeneration efficiency over dual-tank redundancy. For continuous flow, the Fleck 9100SXT Dual Tank provides constant soft water. This dual-tank model is heavier at 200 pounds and stands 60 inches tall.
What is the difference between the 48k and 80k models?
The primary difference is grain capacity. The 48k models offer 48,000 grains, suitable for standard or average homes with moderate usage. The 80k model provides 80,000 grains, catering to larger households with higher water demand. Both share similar dimensions, but the higher capacity unit handles more hardness before regeneration.
Are AFWFilters softeners difficult to install?
Most units are designed for whole-house installation with a consistent 10-by-54-inch footprint. The standard 48k models use the Fleck 5600SXT valve, which is a common, proven control system. The dual-tank option requires more space and weight management due to its 200-pound weight and 60-inch height.
