The Purina Tidy Cats 4-in-1 Strength Clumping Cat Litter is a powerful and effective way to provide a clean and healthy environment for your cat. This litter features a clumping action that makes it easy to pick up after your cat without having to bend over or kneel down. The powerful odor control provides advanced odor protection, while the 20 lb. jug offers ample volume for large litters.