The Mini Vortex is the newest addition to Pioneer Pet's Vortex family. This drinking fountain is for cats and small dogs. This fountain creates a “vortex” that pulls down any hair or debris from the bowl. It also adds oxygen into the water. You will be amazed how clean your pets drinking water is! The Mini Vortex is a wonderful pet drinking fountain at a great price point.* Lower profile is ideal for cats and small dogs* Vortex action pulls debris away from drinking area* Replaceable charcoal filter helps keep water fresh and clean* L.E.D light shows when water level is low* BPA Free premium plastic bowl* 80 oz capacity* Uses filter #3091