The Pet Fountain Cleaning Kit is a convenient and easy way to keep any Drinkwell fountain clean. This set of 3 brushes is great for cleaning your pet fountain and pump. The large brush with the sponge tip is perfect for soaping the sides and bowl of the fountain. The small flexible brush easily cleans debris and buildup from the pump to maintain the functionality of the fountain. The harder medium brush helps clean all other components of the pet fountain.