The SmartSift by Catit Design automatic litter box with a sifting system eliminates the tedious task of emptying litter boxes. The SmartSift's innovative and simple sifting design does the work for you, so you can say goodbye to the litter scoop. For a constantly refreshing litter box with its self-cleaning technology, simply pull the lever! The lever activates the automatic and silent sifting process, quickly and efficiently emptying the litter box while collecting litter in the bag. Clean litter is recycled back into the box, and litter is collected in the bin with litter liners for easy disposal. Refilling the litter box is easy; simply open the maintenance access door with the lid and add as needed. SmartSift is a large cat litter box with a safe, manual system. It has no motor parts that can wear out over time and no expensive electronic components that need replacing. This feature is quiet and safe, making it cat-friendly. SmartSift's airtight design prevents spills and controls dust, helping to keep your home dust-free. Additionally, it includes a built-in carbon filter to remove and absorb unpleasant odors from inside the litter box. Features include: safe and quiet operation; a sealed, airtight litter box design that minimizes tracking and provides privacy; a cat litter pad with a built-in carbon filter that absorbs odors; a large swing door that allows cats to easily enter and exit; a transparent access window for easy monitoring of litter and removal; a litter box that collects clumps for easy disposal in litter bags; a maintenance door that allows you to easily clean the litter box; and a biodegradable liner for the cat litter box plus one for the trial litter box. To complete your cat's supplies with some Katit products, check out Katit cat litter mats, Katit cat litter scoops, and cat toys.