This is a substrate tray that will fit any extra large cage XL. (24x24x48). These trays are for substrate only and are not waterproof. All corners have openings and will leak if saturated. If you would like to make them watertight you can do so with a PVC paste, silicone or plumbers putty. If you're using these cages with a MistKing system ensure that you evaporate at the rate that you're spraying. Easy to take out from the cage.