SmartScoop Self-Cleaning Cat Litter Box - Automatic Litter Box The SmartScoop Self-Scooping Cat Litter Box is your solution to messy litter pans. Our self-cleaning litter box uses a single assembly motor unit that moves on a track outside of the litter box, so litter won"t clog gears and prevent the unit from working. Cat waste is raked and collected inside the easy to empty reservoir. Activated carbon filters absorb unpleasant odors for a fresher litter box and healthier environment. The smart sensor triggers the activation of the cleaning cycle 15 minutes after your pet leaves the box. If the cat or another cat enters the box during the 15 minute countdown, the unit will stop and reset. The SmartScoop Self-Cleaning Cat Litter Box works with your favorite clumping cat litter.Includes:Heavy duty litter panMotorized unit with rakeLitter catching rampLitter catching mat6-Pack of activated carbon filters24-Pack of no-touch waste bags