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When comparing the ispring ds4s bottleless water dispenser vs ds4s pb bottleless water, you see two nearly identical units from iSpring. Both offer 4-stage filtration, 3 temperature settings, and self-cleaning features. The main difference lies in their physical dimensions and filtration certification. The DS4S is wider and taller, while the DS4S-PB is more compact. Both connect directly to your water line for continuous supply.
Dimensions
16" W x 16" L x 46" H
14.1" W x 11.8" L x 41.7" H
Weight
40.2 pounds
41.4 pounds
Lead Removal Certification
not listed
SGS-Tested (up to 99%)
Filter Stage 3
Carbon block
FCPBDS carbon block
Choose the first if
- You need a unit with a wider footprint for easier access to internal components.
- You prefer a taller unit that reaches higher shelf levels.
- You want a model with a standard carbon block third stage without specific lead certification claims.
Choose the second if
- You have limited counter space and need a narrower footprint.
- You prioritize SGS-tested lead removal certification for peace of mind.
- You prefer a more compact height that fits under standard lower cabinets.
Verdict
Choose the DS4S if your space allows for its larger dimensions and you do not require certified lead removal claims. The DS4S-PB is the better choice for tighter spaces and those who value specific SGS testing for lead reduction. Both provide essential 3-temperature water and self-cleaning maintenance.
01 iSpring DS4S vs DS4S-PB Specs
Physical dimensions
Edge: Tie
The iSpring DS4S measures 11.8 inches wide by 14.1 inches deep by 41.7 inches tall. Its footprint is slightly wider but shallower than the DS4S-PB. The DS4S-PB measures 14.1 inches wide by 11.8 inches deep by 41.7 inches tall. Both units share the same height, so they fit under standard cabinets equally well. The DS4S is slightly narrower in depth, which may help in tighter kitchen corners. The DS4S-PB is wider, offering a bit more stability. You should measure your available space carefully, as the width and depth swap between these two models.
Filtration certification
Edge: iSpring DS4S-PB Bottleless Dispenser
Both units use a 4-stage filtration system to remove sediments, chlorine, lead, mercury, PFAS, and chloramines. The DS4S-PB explicitly states that its filter media is SGS-tested to remove up to 99% of lead. The DS4S lists lead removal in its features but does not mention third-party certification or specific removal percentages. If verified lead reduction is a priority for your household, the DS4S-PB provides documented proof of performance. The DS4S relies on general claims without citing specific test results. For peace of mind regarding heavy metals, the certified data in the DS4S-PB is a clear advantage.
Filter lifespan
Edge: iSpring DS4S-PB Bottleless Dispenser
The DS4S-PB provides specific replacement intervals for its filters. Stage 1 lasts up to 6 months, while Stages 2, 3, and 4 last up to 12 months each. The DS4S data does not list specific filter lifespan durations. It mentions low-maintenance replacements but lacks the detailed schedule found in the DS4S-PB specs. Knowing exactly when to change each stage helps you plan maintenance and budget for supplies. Without this data for the DS4S, you cannot compare the long-term upkeep costs as accurately. The DS4S-PB offers more transparency here.
Weight
Edge: Tie
The iSpring DS4S weighs 40.2 pounds. The iSpring DS4S-PB weighs 41.4 pounds. Both units are relatively similar in weight, making them manageable for installation by one person. The DS4S-PB is just over a pound heavier. This slight difference is unlikely to affect stability or installation difficulty. Both are bottleless units that connect directly to your water line, so the weight includes the internal components and stainless steel body. You will not notice a significant difference in handling between the two models based on weight alone.
Safety features
Edge: Tie
Both dispensers include a child safety lock to prevent accidental scalding from the hot water tap. They both feature self-cleaning functions to maintain hygiene with minimal effort. The DS4S highlights a child safety lock in its features list. The DS4S-PB also emphasizes this lock and self-cleaning capability in its description. Since both units share these critical safety and maintenance features, there is no distinction between them in this category. You get the same level of protection for children and the same ease of cleaning regardless of which model you choose.
02 Which iSpring dispenser suits your space
Office users needing lead removal
Our pick: iSpring DS4S-PB Bottleless Dispenser
The DS4S-PB highlights SGS-tested lead removal, eliminating up to 99% of lead. Its 4-stage system targets chlorine, mercury, and heavy metals. This focus on contaminant reduction makes it ideal for workplaces prioritizing certified safety in hot, cold, and room-temperature water for staff.
Buyers with wide counter space
Our pick: iSpring DS4S 3-Temp Bottleless Dispenser
The DS4S offers a 16-inch width, providing a broader footprint than the DS4S-PB. Its dimensions are 16 by 16 by 46 inches. This wider base may fit better in areas with ample lateral space. It still delivers 3-temperature water and self-cleaning maintenance for daily use.
Users prioritizing compact depth
Our pick: iSpring DS4S-PB Bottleless Dispenser
The DS4S-PB measures 11.8 inches deep, making it shallower than the DS4S. This reduced depth helps it fit into tighter nooks or against walls where depth is limited. It retains the same 3-temperature options and 4-stage filtration, ensuring performance without sacrificing floor space.
iSpring DS4S 3-Temp Bottleless Dispenser
Best for: Compact homes needing lead and PFAS removal
- Loading Type
- Bottleless direct-line connection
- Temperature Settings
- Hot, cold, or room temp
- Filtration Type
- 4-stage filtration
- Sanitization Method
- UV self-cleaning
- Features
- Self-Cleaning, Child Safety Lock
- Target Contaminant
- Chlorine, Lead
The iSpring DS4-S is a bottleless water dispenser with a 4-stage filtration system. It removes lead, chlorine, and PFAS while offering three temperature settings: hot, cold, and room. The unit measures 41.7 inches tall and weighs 40.2 pounds. It features a self-cleaning function and a child safety lock. This model suits homes or offices needing compact, filtered water access without bulky bottles.
- 4-stage filtration removes lead, chlorine, and PFAS
- Offers hot, cold, and room temperature water
- Self-cleaning sanitization method included
- Child safety lock for hot water
- Heavier build at 40.2 pounds compared to lighter alternatives
- Shorter height of 41.7 inches versus the 46-inch option
- You want a bottleless system that removes lead and PFAS
- You need a compact unit for limited counter or floor space
- You prefer a self-cleaning dispenser with child safety features
- You require a taller unit to match your cabinetry height
- You need a heavier, more robust build for high-traffic areas
- You prefer a black or navy color option over silver
Verdict: iSpring DS4-S Stainless Steel Dispenser fits users who prioritize lead and PFAS removal in a compact, self-cleaning bottleless system. It is ideal for spaces where a 41.7-inch height and lighter footprint are preferred over taller, heavier models.
iSpring DS4S-PB Bottleless Dispenser
Best for: lead removal and direct water line connections
- Loading Type
- Bottleless direct line
- Temperature Settings
- Hot, cold, room
- Filtration Type
- 4-stage filtration
- Sanitization Method
- Self-cleaning
- Target Contaminant
- Lead
- Material
- Stainless Steel
The iSpring DS4S-PB connects directly to your water line for bottleless convenience. It features a 4-stage filtration system that removes lead, sediment, and chlorine. You get three temperature options: hot at 194°F, cold at 41°F, and room temperature. The unit includes a child safety lock and self-cleaning function. Its compact stainless steel design fits in homes or offices.
- 4-stage filtration removes up to 99% of lead
- Three temperature settings: hot, cold, and room temp
- Direct connection to water supply eliminates heavy bottles
- Child safety lock prevents accidental scalding
- Self-cleaning function for easy maintenance
- Heavier build at 41.4 pounds compared to lighter alternatives
- Fixed dimensions of 14.1 x 11.8 x 41.7 inches limit placement options
- Fewer temperature settings than units offering more than three options
- You want to remove lead from your drinking water
- You need hot, cold, and room temperature water on demand
- You prefer a bottleless system that connects to your water line
- You require more than three temperature settings
- You need a lightweight unit under 30 pounds
- You prefer a countertop model rather than a floor-standing dispenser
Verdict: iSpring DS4S-PB 3-Temp Dispenser suits households prioritizing lead removal and direct water line connections. It is ideal for users who want reliable hot and cold water without handling heavy bottles.
03 Specifications side by side
| Spec | iSpring DS4S 3-Temp Bottleless Dispenser | iSpring DS4S-PB Bottleless Dispenser |
|---|---|---|
| Loading Type | Bottleless direct-line connection | Bottleless direct line |
| Temperature Settings | Hot, cold, or room temp | Hot, cold, room |
| Filtration Type | 4-stage filtration | 4-stage filtration |
| Sanitization Method | UV self-cleaning | Self-cleaning |
| Features | Self-Cleaning, Child Safety Lock | Self-Cleaning |
| Target Contaminant | Chlorine, Lead | Lead |
| Material | Stainless Steel | Stainless Steel |
| Intended Use | Office, Home | Office, Home |
| Dimensions | 16 × 16 × 46 inches | 11.8 × 14.1 × 41.7 inches |
| Weight | 40.2 pounds | 41.4 pounds |
| Size | Water Dispenser-Basic | Water Dispenser-PB |
| Color | Silver | Silver |
| Model | DS4-S | DS4S-PB |
04 Frequently asked questions
Does the iSpring DS4S remove lead from water?
Yes, the iSpring DS4S targets lead removal. Its filtration system is designed to reduce specific contaminants including chlorine and lead. This makes it suitable for users in areas with compromised water quality who need a compact, self-cleaning dispenser for their home or office.
Is the iSpring DS4S-PB bottleless or does it use bottles?
The iSpring DS4S-PB is a bottleless unit. It connects directly to your water line, eliminating the need to handle or replace heavy water bottles. This loading type ensures a continuous supply of filtered water without the hassle of manual refilling.
Which model is lighter, the DS4S or the DS4S-PB?
The iSpring DS4S is lighter. It weighs 40.2 pounds, while the DS4S-PB weighs 41.4 pounds. This slight difference in weight may matter if you plan to move the unit frequently or need to fit it into a space with strict weight limits.
Does the DS4S-PB have child safety features?
The provided data for the DS4S-PB does not list child safety locks. However, the standard DS4S model explicitly includes a child safety lock. You should verify if the PB variant includes this feature, as it is not specified in the current specifications.
What is the width difference between the two dispensers?
The iSpring DS4S is wider at 16 inches, whereas the DS4S-PB is narrower at 14.1 inches. If you have a tight counter space or cabinet, the DS4S-PB’s narrower profile might fit better. The DS4S requires more lateral width.
Can I use the iSpring DS4S in an office setting?
Yes, the iSpring DS4S is intended for both office and home use. Its stainless steel construction and bottleless design make it practical for shared workspaces. The self-cleaning feature helps maintain hygiene in high-traffic environments without requiring frequent manual maintenance.
What temperature settings do these iSpring dispensers offer?
Both units provide three temperature settings. This allows you to select the ideal water temperature for drinking, tea, or coffee. The DS4S-PB specifically highlights these three settings as a key attribute for user convenience and versatility in daily use.

