This PetSafe Oasys fountain review looks at a one-gallon filtered fountain for cats and small to medium dogs.
Its adjustable stream and open bowl make it a practical option for households that want circulating water with a water reserve if power stops.
PetSafe Oasys Review Summary
The quick verdict

11,000+ ratings
Read Amazon ReviewsPetSafe Oasys Pet Fountain
A filtered, adjustable-flow fountain for cats and small to medium dogs, with an open bowl that keeps water available during a power outage.
- One-gallon water capacity for cats or small to medium dogs.
- Adjustable flow control can slow the stream or turn it off for quieter operation.
- Open, whisker-friendly tray holds water if the power goes out.
- Replaceable carbon filter refreshes water; foam filter catches hair and debris.
Pros
- Adjustable flow can be turned off for shy cats or quieter operation.
- The open, whisker-friendly tray retains water during a power outage.
Consider before buying
- The pump must be removed before putting the fountain body in the dishwasher, so cleaning still involves separating the powered component.
- Its intended size range is cats and small to medium dogs; households with larger dogs should check whether the capacity fits their routine.
Read the full review summary
The Oasys combines a falling stream with an open, whisker-friendly tray and a one-gallon capacity.
Its carbon filter refreshes water while a foam filter catches hair and debris, giving cat and small to medium dog households a straightforward way to offer filtered, moving water.
Flow control lets you slow the stream or turn it off for quieter operation or shy cats.
The plastic body is top-rack dishwasher safe when the pump is removed, so the fountain may suit owners who value easy cleanup and a familiar bowl backup during a power interruption.
The buying factors
PetSafe Oasys Scorecard
Editorial scores reflect listed features and buyer fit; they are not laboratory measurements or customer ratings.
Capacity for everyday use
One gallon offers a useful reserve for a cat or small to medium dog household, while the open tray keeps water available if power stops.
Flow adjustment
The adjustable control can reduce the stream or switch it off, giving owners options for shy pets and quieter operation.
Filtration setup
Separate replaceable carbon and foam filters address water freshness as well as hair and debris.
Power-outage reserve
The open bowl and tray hold water when power goes out, offering a useful reserve beyond the active stream.
Cleaning convenience
The plastic fountain is top-rack dishwasher safe apart from the pump, and its design avoids hard-to-reach places.
Pet-size fit
The intended fit is clear for cats and small to medium dogs, so owners of larger dogs should consider their household’s water needs carefully.
Key Features and Specifications of PetSafe Oasys
- One-gallon water capacity for cats or small to medium dogs.
- Adjustable flow control can slow the stream or turn it off for quieter operation.
- Open, whisker-friendly tray holds water if the power goes out.
- Replaceable carbon filter refreshes water; foam filter catches hair and debris.
- Top-rack dishwasher-safe plastic body; pump excluded.
- Designed without hard-to-reach places for easier cleaning.
Pros and Cons of PetSafe Oasys
Pros
- Adjustable flow can be turned off for shy cats or quieter operation.
- The open, whisker-friendly tray retains water during a power outage.
- Carbon and foam filters cover water refreshment and debris capture.
- Dishwasher-safe body and a design without hard-to-reach places simplify routine cleaning.
Consider before buying
- The pump must be removed before putting the fountain body in the dishwasher, so cleaning still involves separating the powered component.
- Its intended size range is cats and small to medium dogs; households with larger dogs should check whether the capacity fits their routine.
- The water stream depends on power, so plan to refill or monitor the open bowl during an outage.
Who Should Buy PetSafe Oasys?
Good fit
Choose the Oasys if you have cats or small to medium dogs and want adjustable circulating water with a bowl that retains water during a power outage.
Its filter combination also suits owners who want both carbon filtration and hair and debris capture.
It is a good match for owners who need to accommodate a shy cat: lower the flow or turn the stream off, and keep the open tray accessible.
The top-rack dishwasher-safe body and no-hard-to-reach-places design also favor buyers who want a manageable cleaning routine.
Who should skip it
Look elsewhere if you need a fountain sized specifically for large dogs or a design that can be fully dishwasher cleaned with its pump in place.
The Oasys is aimed at cats and small to medium dogs, and the pump is excluded from dishwasher cleaning.
PetSafe Oasys Review: Water Access, Flow and Cleaning
A stream with a bowl backup
A falling stream encourages pets to drink, while the open bowl design changes the practical equation: water remains in the tray if the fountain loses power.
That is a useful continuity feature, although the stream itself still depends on the fountain running.
Flow control for cautious pets
The adjustable flow gives owners a way to tailor the stream, and switching it off supports quieter operation or a cautious cat.
This flexibility can help introduce a fountain gradually, while retaining the option of running water when the pet is ready for it.
Two filters, two jobs
The carbon filter refreshes the water, while the foam filter catches hair and debris. Owners should plan for replacement filters as part of upkeep and follow the product’s maintenance routine to keep the filtration system working as intended.
Cleaning around the pump
The plastic fountain is top-rack dishwasher safe with the pump removed, and the design avoids hard-to-reach places.
That makes routine cleaning simpler, though owners still need to handle the pump separately and confirm it is kept out of the dishwasher.
Alternatives to PetSafe Oasys
Dog Fountains alternative

23,000+ ratings
Read Amazon ReviewsPetSafe Drinkwell Platinum Cat Water Fountain
Prefer the Drinkwell Platinum if your household needs more capacity or longer between-refill intervals, while the Oasys fits a one-gallon setup for cats and small to medium dogs.
- The Drinkwell Platinum has a 168 oz capacity, a built-in reservoir that extends time between refills, and an adjustable stream; it is positioned for pets of all sizes or multiple pets.
- The Oasys has a one-gallon capacity and is intended for cats or small to medium dogs, with an open tray that holds water if power goes out.
Dog Fountains alternative

300+ ratings
Read Amazon ReviewsPetSafe Outlast Pumpless Dog Water Fountain
Choose Outlast if you want a pumpless water-cycling design with night flow adjustment and low-water shutoff; choose the Oasys if the replaceable carbon and foam filter combination better fits your care routine.
- The Outlast has a pumpless HydroSpin mechanism that cycles 128 oz into an open bowl, with a motor protected from water and debris and sensors that slow flow at night and stop it when water is low.
- The Oasys uses a replaceable carbon filter and foam filter alongside its moving stream, with a one-gallon capacity for cats and small to medium dogs.
Is PetSafe Oasys Worth It?
The PetSafe Oasys Pet Fountain is worth considering for cat owners and households with small to medium dogs who want adjustable flow, replaceable carbon and foam filtration, and a bowl that holds water if power goes out.
Those features cover the everyday essentials without relying solely on a running stream.
Buy it if that capacity suits your household and you are comfortable removing the pump for dishwasher cleaning.
Owners of larger dogs, or buyers seeking more capacity and fewer refill stops, should weigh those needs before choosing this fountain.
Your review at a glance

11,000+ ratings
Read Amazon ReviewsPetSafe Oasys Pet Fountain
A filtered, adjustable-flow fountain for cats and small to medium dogs, with an open bowl that keeps water available during a power outage.
- One-gallon water capacity for cats or small to medium dogs.
- Adjustable flow control can slow the stream or turn it off for quieter operation.
- Open, whisker-friendly tray holds water if the power goes out.
- Replaceable carbon filter refreshes water; foam filter catches hair and debris.