Petco Gravity Flow Waterer for CatsOur Petco Gravity Flow Waterer for Cats is an easy and convenient way to provide your kitty with a supply of fresh, clean drinking water even when you are not home. We"ve manufactured our waterer with durable plastic for longstanding use. Plus, it"s easy to clean with its high polish surface and easy to fill, just remove water reservoir tank from the base. The base is also dishwasher-safe! It is ideal for both indoor and outdoor use.