PetSafe ScoopFree PAC00-14231 Litter Tray, 14.6 in W, 3-1/2 in D, Cardboard/Plastic, Blue Key Blanks / Accessories These units are activated and

These units are activated and de-activated by an integral energy saving thermostat

PetSafe ScoopFree PAC00-14231 Litter Tray, 14.6 in W, 3-1/2 in D, Cardboard/Plastic, Blue Key Blanks / Accessories These units are activated andEach ScoopFree disposable crystal litter tray is pre filled with premium blue crystal cat litter, so all you have to do is load the tray in the litter box with no scooping, cleaning or refilling for weeks. These trays reduce mess in your home with a plastic lining to fight leaks and with low tracking crystals that stick inside the box instead of on your cat's paws. Crystal litter absorbs urine and dries solid waste to quickly remove odors 5 times