Stainless Steel Cat Water Fountain
- Cat Fountain
- Corded electric
- Stainless Steel
- Cat, Dog, Small Animal
- Better rated than 60%
A large capacity stainless steel fountain with a stack of spare filters included, geared toward households that would otherwise refill a smaller fountain daily.
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How it ranks among the 43 cat fountains we track
4.4★ across 53 Amazon ratings, Bayesian-smoothed toward the category average.
53 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
500+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 43 cat fountains we track - how the scorecard works · full cat fountains data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
A stainless steel pet water fountain from GULUNOOK holding 4 liters or 135 oz, built for cats and small dogs, running on USB power with a quiet pump and four filters plus four sponges included.
Stainless steel resists the biofilm buildup that plastic basins are prone to over time. It runs on corded USB power rather than battery, so it is not a cordless option, and the round 9.17 inch footprint needs a clear spot to sit. Shipping with four filters and four sponges covers roughly a filter change every month before a reorder is needed.
- 4L / 135 oz capacity
- 9.17 in round footprint, 8.27 in tall
- 1.8 lb empty weight
- Includes 4 filters and 4 sponges
Who it's for
Multi cat or cat plus small dog households wanting a large capacity fountain that does not need daily refilling. Not for households wanting a cordless or battery powered fountain.
Strengths and trade-offs
Drawn from this product's published specifications.
- 4 liter / 135 oz capacity reduces refill frequency
- Stainless steel basin instead of plastic
- Ships with 4 filters and 4 sponges
- Rated for cats and small dogs
- Corded USB power only, not cordless or battery
- Round 9.17 in footprint needs a clear counter or floor spot
- Stainless steel adds weight versus plastic fountains
Performance notes
A stainless steel basin resists the biofilm buildup that plastic fountains are prone to over time, and shipping with four filters plus four sponges covers roughly a filter change every month before a reorder is needed. The 4 liter tank is sized to reduce refill frequency in multi pet households rather than being pitched as a single cat fountain.
Specifications
| Brand | Stainless |
|---|---|
| Model | YSJ402 |
| Dimensions & fit | |
| Item Weight | 1.8 pounds |
| Item Dimensions L X W X H | 9.2 × 9.2 × 8.3 inches |
| Dog Breed Size | Small |
| Power & efficiency | |
| Power Source | Corded electric |
| Construction & materials | |
| Material Type | Stainless Steel |
| Color | silver |
| Included components | |
| Unit Count | 1 |
| Included Components | Cover |
| Other details | |
| Pet Type | Cat, Dog, Small Animal |
| Customer Reviews | {'ratings_count': '53', 'stars': '4.4'} |
| Asin | B0GJD2LHVQ |
| Indoor Outdoor Usage | Indoor |
| Best Sellers Rank | #6,961 in Pet Supplies (See Top 100 in Pet Supplies) #98 in Cat Fountains |
| Manufacturer | GULUNOOK |
| Model Number | YSJ402 |
| Animal Water Dispenser Form | Fountain Water Dispenser |
| Item Shape | Round |
Other Stainless cat fountains
How it compares
This product against the closest alternatives we track in cat fountains.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Stainless Steel Cat Water FountainThis product | 4.4 / 5 | 53 | 3.9 / 5 |
| Cat Water Fountain Stainless Steel: 74oz/2.2L Cat Fountain for DrinkingCat | 4.4 / 5 | 11,585 | 4.5 / 5 |
| Veken Innovation Award Winner 95oz/2.8L Pet FountainVeken | 4.3 / 5 | 49,309 | 4.4 / 5 |
| Wonder Creature Cat Water Fountain Stainless SteelWONDER | 4.4 / 5 | 57,300 | 4.4 / 5 |
| PETLIBRO Stainless Steel Cat Water FountainPETLIBRO | 4.6 / 5 | 1,870 | 4.4 / 5 |
Similar cat fountains from other brands
Questions about the Stainless YSJ402
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What is the capacity of the GULUNOOK YSJ402 fountain?
4 liters, listed as 135 oz.
Is this fountain cordless?
No, it is corded electric with USB power rather than battery operated.
How many filters come included?
Four filters and four sponges ship with the unit.