The PetSafe ScoopFree Self-Cleaning Litter Box provides weeks of fresh, clean litter whenever your cat needs it. Less time spent maintaining your cat’s litter box means you can enjoy more quality moments with your cat and live happy together! Easy to Use Set Up in One Minute Pace the tray under the litter box and the magnets on the waste trap. Then, pour the pre-portioned package of litter into the litter tray for weeks of odor and moisture control. Self-Cleans for Weeks Plug the box in and it’s ready to work. The cleaning cycle begins 20 minutes after the sensor detects when your cat leaves the litter box. Easy to Clean Tray When you’re ready to for new litter, throw the old litter out and simply clean the tray before pouring more litter. More PetSafe Solutions for You and Your Cat Includes 3 disposable, leak-proof litter tray refills. Available in 3 different types Lavender, Original and Sensitive. Includes 6 disposable, leak-proof litter tray refills. Available in 3 different types Lavender, Original and Sensitive. Includes 2 bags of crystal litter. Available in 3 different types Lavender, Original and Sensitive. Similar to the ScoopFree Ultra, this automatic litter box stays fresh and clean without the hassle of scooping. Same great features as the ScoopFree Original with the additions of a built-in health counter, timer options and a front-entry privacy hood. Same great features as the ScoopFree Original with the additions of a built-in health counter, timer options and a top-entry privacy hood.