DESC: *Developed by a veterinarian*A healthy way to get dogs to drink more water*Self-contained*Completely disassembles for cleaning-->Keep your pet healthy and hydrated.Veterinarian-designed, patentedfountain supplies a steady stream ofwater that continually recycles itself.Simply fill fountain with water, placeon a flat, even surface, and plug in.Water pouring into basin recyclesback through filter and aerates continually.Quiet operation and variableflow rate. Large Fountain system isone unit: reservoir holds one gallonof water and entire unit has 2-galloncapacity. Regular Fountain, for catsand small dogs, holds 50 oz. Optional50 or 75 oz. reservoir provides alarger water supply. Regular Systemsinclude pet fountain and reservoir.3-pack of replacement filters alsoavailable. Keep your fountain cleanwith the Drinkwell CleaningKit, which includes a 12" HousingBrush, a 12" Intake Tube Brush, anda 6" Motor Brush. Perfect for cleaningDrinkwell or any other feeder orfountain.Replacement FiltersBuy