Features: Water capacity: 1.5 litres Dishwasher safe Pre-filter catches hair and other large particles before they reach the motor Patented free-falling stream entices pets to drink more water Receiving ramp reduces splash of falling water Adjustable flow control Replaceable charcoal filter removes bad tastes and odours Why is running water so important? Research shows that one of the best ways to improve your pets health is to get them to drink more water, and the best way to do that is with the Drinkwell Original pet fountain. By using a patented free-falling stream of water, the pet fountain continually aerates your pets water with healthful oxygen. An extra large charcoal filter removes bad tastes and odours, giving your pet the best possible, and most appealing, way to stay hydrated!