Covered corner litter box for cats with charcoal filter. The high-quality covered cat litter box Prism by EBI features a grid with an activated charcoal filter that eliminates unpleasant odors. The non-slip feet prevent the litter box from sliding. The innovative wedge design provides more space in the home. The covered litter box has a transparent door that prevents the contents from spilling out, even when your cat scratches in the litter. The lid is also equipped with a practical handle.