The PetSafe Healthy Pet Water Station is a gravity water system that allows your pet to get fresh water at any time of the day. A flow-control valve fills the bowl as your pet drinks the water, assuring bottled water freshness. The optional Healthy Pet Water Filter helps remove sediments and odor for cleaner, great-tasting water. The removable dishwasher safe stainless steel bowl is hygienic and easy-to-clean. Available in 3 sizes and great for one or multiple pets.