Amazon.com: Cat Litter Box Liners Drawstring Large (30 Bags) 37" x 18" Scratch Resistant Extra Heavy 2 Mil Litter Tray Cat Box Liner Bags (30 Count, Large) : Pet Supplies
Amazon.com: Mavere Jumbo Cat Litter Box Liners - 30 Count Extra Large Drawstring Bags, 4 Mils Thickness Pan Liner for Pet Cats and Kitties - 41" x 18" Oversized : Pet Supplies
Fresh Step Scented Drawstring Large Cat Litter Box Liners, Count of 7 | Petco