Abrasive liner for cat litter boxes; Cat litter boxes; Cat litter pans; Disposable liner pads for animal litter boxes; Filters for use in cat litter boxes; Litter boxes for pets; Litter trays for pets; Pet litter box liners; Pet litter boxes; Pet waste management kits comprising scoops for pet waste disposal, plastic bags and liners, and portable dispensers for plastic bags and liners sold as a unit