Covered corner toilet with charcoal filterThe large Prism quality covered litter tray fromEBI features a grid with an activated charcoal filter that eliminates unpleasant odors. Non-slip feet prevent the litter tray from slipping. Its innovative wedge-shaped design saves space in the home. This covered litter box features a transparent door that prevents the contents from escaping, even when your cat is scratching the gravel. The lid also features a practical handle.