Pros: With its 108-ounce fill capacity and a filter good for four months, this fountain provides fresh, filtered water for a long time.

Cons: The unit may be noisy and filters may be difficult to find. Users need to clean pet hair out on a regular basis.

Summary: The unit is fairly compact and easy to store, but we recommend the Drinkwell Platinum over it.

Pros: The fountain's stainless steel construction is durable and good for pets who get chin acne from drinking out of plastic bowls. It is quiet and easy to clean.

Cons: Filters may be difficult to find, and the motor may be noisy if the fountain is under-filled.

Summary: This unit is quiet, dishwasher-safe, and is easily disassembled for cleaning. Pets with chin acne should see a reduction in the condition with a stainless water bowl.

Pros: Although the name says "Cat Mate," this fountain is also suitable for small dogs. It is quiet and reliable, easy to refill, and has a 75-ounce capacity.

Cons: The fountain must be cleaned regularly to prevent mold and slime buildup. Water should be changed completely about twice a week.

Summary: With three drinking levels, this fountain should appeal to most cats or small dogs. Its quiet operation means animals won't be frightened by a noisy motor.

Pros: Holds 168 ounces and has charcoal based filters for extra fresh water. It has a flowing stream, allowing pets to drink from the stream, or from the bowl itself.

Cons: It requires regular cleaning to maintain proper water flow; customer service may be difficult if there's a problem with the unit.

Summary: This is a large-capacity pet fountain that is quiet and effective. A great product for a bargain price.