Petmate Cafe Pet Waterer - Pearl TanPetmates Cafe Pet Waterers feature an automatic gravity design and keeps your pet hydrated for extended periods of time. These eco friendly waterers fill up the water reservoir whenever the water level is getting low. Gravity automatically replenishes your pets water Keeps pets hydrated even when owners are away Easy to clean and fill The large dispensing hole makes the bottles easy to clean and the bases come with easy to grab cut outs to move from