Petmate Booda Cleanstep Filters by Petmate $7.18 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. The Petmate® Cleanstep Filter will keep your cat's litter box smelling fresh all day long! Filters are safe, natural, and non-toxic, making pet and pet parent happy. This filter quickly absorbs unwanted litter box odors. Made in the USA.