iSpring DS4B-MAX Bottleless Water Cooler, 4-Stage Filtration

Filtration: The iSpring DS4B-MAX bottleless water cooler connects to a water supply and dispenses hot, cold, or room-temperature water through a four-stage filter system. Its listing claims SGS testing of the first three filter stages and up to 99% reduction of PFAS, lead, and chloramine. Those are manufacturer claims, not independently verified performance results.

At a glance

Connects directly to a water supply, avoiding the need to lift and replace large water bottles.
Provides hot, cold, and room-temperature water. The listing specifies cold at 41°F and hot at 194°F.
Four filtration stages include carbon block filters for PFAS, chloramine, and lead, followed by a post-carbon filter. The listing says the first three stages were tested by SGS.
Includes a hot-water child safety lock and a self-cleaning function, according to the listing.
Replacement filters are listed for each stage, with up to 12 months stated for each.

Price

$496.99Save 19%

Reference price: ~~$615.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Three temperature options make it useful for cold drinks and hot-water needs without a separate dispenser.
Bottleless, direct-water connection removes routine bottle lifting and replacement.
The listed filter design targets PFAS, chloramine, and lead, with SGS testing claimed for its first three stages.
Self-cleaning and a hot-water safety lock are included features according to the listing.

Cons

At 41.7 inches tall and 40.2 pounds, it needs a dedicated floor position and may be awkward to relocate.

Technical specifications

12 specifications

Identity
Brand	iSpring
Model	DS4B-MAX

Dimensions and installation
Dimensions listed	11.8"D x 14.1"W x 41.7"H
Weight listed	40.2 pounds

Filtration and dispensing
Filtration stages	4-Stage Enhanced Filtration System
Cold water temperature	41°F
Hot water temperature	194°F

Materials and protection
Material listed	water filter

Filter maintenance
Stage 1 replacement filter	FCPFDS, up to 12 months
Stage 2 replacement filter	FCNCDS, up to 12 months
Stage 3 replacement filter	FCPBDS, up to 12 months
Stage 4 replacement filter	FTDS, up to 12 months

What to know before buying

The listing claims up to 99% reduction of PFAS, lead, and chloramine and SGS testing of the first three filter stages, but provides no test protocol or conditions here. The stated up-to-12-month filter lives are maximums, not guaranteed intervals. A water-line connection is required.

Who is it for?

A good fit for

Homes or offices that want hot, cold, and room-temperature water from a bottleless dispenser.
Buyers prepared to connect the unit to a water supply and maintain four replacement filters.
People seeking a floor-standing dispenser with a hot-water safety lock and self-cleaning function.

Less suited to

Buyers who need a countertop or easily portable dispenser.
Those who cannot connect a dispenser to a water supply or do not want to replace multiple filters.

iSpring DS4B-MAX Bottleless Water Cooler, 4-Stage Filtration · photo 2 — Additional product photo 2

Customer reviews on Amazon

5 / 5 · 2 ratings

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The supplied evidence contains only aggregate ratings, with a small number of ratings all in the five-star category. That is a limited signal and does not establish why customers rated it highly or how it performs. Consider the water-line connection and the need to maintain four filters when deciding whether its bottleless setup fits your use.

Frequently asked questions

Does the iSpring DS4B-MAX require water bottles?

No. The listing describes a bottleless unit that connects directly to a water supply.

What temperatures does it dispense?

It offers hot, cold, and room-temperature water. The listing gives 194°F for hot and 41°F for cold.

What contaminants does the filter system target?

The listing claims reduction of PFAS, lead, chloramine, sediment, chlorine, mercury, colloids, and heavy metals. It claims SGS testing for the first three stages, but does not provide test conditions in the supplied details.

How often do the filters need replacement?

The listing gives up to 12 months for each of four replacement filters. Actual replacement timing may depend on use and water conditions.