The Petmate® Nestable Booda® dome litter box offers your cat privacy while lending fashion and cleanliness to your home. The unique, covered design helps contain litter scatter while the large capacity filter helps control unwanted odor. The filter easily inserts into the top of the dome, making replacing the filter extremely simple. the 99% odor-free design and the quality materials make it very easy-to-clean. May also be used with Petmate® litter liners.