No more refills! Now pets always have access to fresh, filtered water with the Drinkwell (Copywrite) Everflow Fountain. When used outdoors, the fountain connects to a standard garden hose and automatically refills to the desired water level preset by the pet's owner. With included accessories, Everflow can also be used indoors with a 1.5 gallon capacity. The fountain continuously circulates and filters the water, keeping it cleaner and fresher than a normal water bowl. Featuring dual filtration, a large foam filter catches large particles and debris before they reach the pump. A 3-layer carbon filter removes smaller debris and enhances the water's taste by removing bad tastes and odors. The free-falling stream entices pets to drink more water and the current inside the bowl helps move the debris towards the filters.