PM LITTER PAN LINERS SMMED285 x 115 Contains 15 each CLEARPM LITTER PAN LINERS LARGE305 x 17 Contains 12 each PM LITTER PAN LINERS JUMBO36 x 165 Contains 8 each Petmates extended lines of litter liners and filters help to keep your kittys litter box clean Liners make changing litter simple and clean while filters minimize unpleasant odors keeping air fresher Available in a variety of sizes and styles to fit Petmate litter boxes.