LitterMaid Waste Receptacles Automatic Litter Boxes, 12 Pack SEALED RECEPTACLES: Locks away waste and odors for a fresh, clean litter box DISPOSABLE CONVENIENCE: Easily remove receptacle and throw away DURABLE ODOR CONTAINMENT: Prevents binding during disposal FILTER READY: Use with LitterMaid Carbon Filters for added odor control COMPATIBILITY: Compatible with the 1st and 2nd Edition Litter Boxes