OWNPETS Cleaing Brush and Water Pump Kit is designed for small or medium pet drinking fountain like OWNPETS, Drinkwell, Petsafe, Catit and the other brands. Providing steady flow of water and long Service Life Note:Please Measure the bottom sink of your pet fountain pump: approx 1.8x1.5”.The size of water pump:1.8Lx1.5Wx1.2H”,the length of cleaning brush 5.5”