Broad Compatibility: The ScoopFree Stainless Steel Reusable Cat Litter Tray works with all models of the ScoopFree Crystal self-cleaning litter boxes, as well as the ScoopFree Pro and Plus systems Odor Control: Silica gel crystals absorb liquid and dry solid waste fast, eliminating smell 5x better than clumping clay for a fresher home; fresh scent crystals add additional odor protection Automatic Litter Box Compatible: Designed for use with our PetSafe ScoopFree Self Cleaning Crystal Litter Boxes, this litter can also be used to refill any litter box, pan or reusable tray Global Mission, Local Care: With U.S. roots and worldwide reach, PetSafe delivers vet- and trainer-recommended solutions and exceptional customer support to create fields of joy for pets 25 Years of Trust: Since 1998, PetSafe has created safe, innovative, and trusted products that bring joy, enhance pet lives, and support the lifelong bond between pets and their families