replacement tray for dog crate pans - small 20 inch plastic bottom pan floor liners for pet cages crates kennels dogs cat rabbit ferret critter nation folding metal wire training cage liner trays paws & pals the paws & pals replacement tray pan is designed to be used with our folding metal dog crate. even though the tray pan is meant to replace the original pan, it can also be used under litter boxes to collect any extra droppings or pieces of litter that your cat may leave behind. constructed from durable plastic, and featuring a deep lip around the perimeter that prevents overflow; the tray will conveniently collect any waste that your dog, cat, rabbit, guinea pig, chicken, and any other pet may leave behind. not only is it sturdy and lightweight, but the replacement pan is incredibly easy to clean. plus, it’s available in multiple sizes: small (20”), medium (24”), large (30”), x-large (36”), xx-large (42”), and xxx-large (48”).