Verdict: two flow options, recurring filter work
The BISSELL HydrateWell 4408 is a plug-in 2.7-liter fountain for cats and small dogs with two flow presentations and a built-in pump arrangement intended to simplify cleaning. Ownership includes a firm maintenance obligation: BISSELL says to replace both the carbon water filter and the pre-pump sponge filter every two weeks.
This is a research-based review, not a hands-on noise, water-quality or pet-acceptance test. The best fit is a household willing to disassemble and clean the fountain routinely, keep the electrical tank exterior dry and budget for two kinds of replacement filters.
Sources: BISSELL HydrateWell FAQ, BISSELL setup and maintenance guide, Amazon exact ASIN.
Facts: exact model 4408
The reviewed product is the black BISSELL HydrateWell automatic water fountain, model 4408, Amazon ASIN B0GL92ST2T and UPC 011120286007. It is intended for cats and small dogs.
| Capacity | 91 oz / 2.7 L |
|---|---|
| Power | Plug-in; 4.3 ft cord |
| Flow choices | Gentle bubbling or waterfall spout |
| Filters | Carbon plus pre-pump sponge |
| Replacement schedule | Both filters every two weeks |
| ASIN / UPC | B0GL92ST2T / 011120286007 |
Sources: BISSELL HydrateWell FAQ, Amazon exact ASIN.
Design: two flows, plug-in power and removable parts
Model 4408 holds 2.7 liters, weighs 1.5 pounds and measures 9.5 by 9.5 by 7.5 inches with the spout installed. Removing the spout lowers the height to six inches and changes the presentation from a waterfall stream to gentle bubbling. It uses a 4.3-foot power cord and is not app-connected.
The filter system combines a carbon water filter with a pre-pump sponge filter. BISSELL says neither filter should be cleaned and reused. A new water filter should soak for at least five minutes before installation, with the flat side facing up.
Sources: BISSELL specifications, BISSELL setup guide.
Research: separate manufacturer claims from measured results
BISSELL describes operation below 30 decibels, five-layer filtration and fresher water for up to 14 days. We did not measure sound, microbial buildup, filtration performance, water freshness or changes in how much a pet drinks. The 14-day language is conditional: BISSELL also says water-replacement timing varies by animal and home environment.
The brand attributes slime-reduction to SlimeShield antimicrobial treatment. That does not remove the need to wash the parts or replace filters, and it is not evidence that the fountain prevents urinary or kidney disease. Questions about a pet's drinking, urination or health belong with a veterinarian.
Source: BISSELL HydrateWell FAQ.
Safety and maintenance: keep the powered tank out of the sink
Unplug the adapter before maintenance. BISSELL instructs owners to clean removable parts with clean water and dish soap only, not cleaning chemicals or vinegar. Rinse away soap residue, but do not submerge the water tank; keep the outside of the tank and the power cord dry.
Debris or hard-water buildup can cause flow problems or a red low-water signal. The guide calls for cleaning the sensor and impeller area, discarding both filters and carefully reinstalling seals and trays. Follow the current manual supplied with the exact unit.
Source: BISSELL setup and maintenance guide.
Buying: confirm the fountain, not the filter-pack variation
The selected Amazon variation was HydrateWell ASIN B0GL92ST2T, not the four-pack of replacement filters shown on the same product family. Research checked October 12, 2026. Check the exact fountain variation, current price, seller and availability on Amazon before ordering.
Before buying, compare the ongoing cost and availability of both replacement-filter types. The included box contents are a pre-installed pre-pump sponge filter, carbon filter, removable spout, USB power adapter and cleaning brush. BISSELL lists a one-year limited US warranty.
Sources: Amazon exact ASIN, BISSELL HydrateWell FAQ.
Related buying research
Compare another pet fountain's power, cleaning and filtration trade-offs.
Questions: filters, cleaning and flow
How often do both filters need replacement?
BISSELL says to discard and replace both the carbon water filter and the pre-pump sponge filter at least every two weeks.
Can I submerge the tank to wash it?
No. BISSELL specifically says not to submerge the water tank and to keep the outside of the tank and power cord dry.
Does it run without the spout?
Yes. Without the removable spout it provides gentle bubbling; with the spout it provides waterfall-style flow.
Sources: BISSELL maintenance guide, BISSELL FAQ.
Sources and limitations
We checked model identity, specifications and maintenance against BISSELL support, then verified the selected Amazon ASIN, variation, current featured price and seller on October 12, 2026. Published claims are not independent performance tests.
Sources: BISSELL FAQ, BISSELL maintenance guide, Amazon exact ASIN.
Four genuine Amazon listing images show the exact product and source marketing. Marketing claims embedded in images are not our measured results. Image-use disclosure.
Is this a hands-on review?
No. We did not measure sound, filtration, water quality, durability or pet behavior.
Are these affiliate links?
Purchases through our retailer links may earn a commission. Full disclosure.