The Catit SmartSift is an innovative, roomy litter box that you can refresh without needing to scoop. Its noiseless pull-and-refresh system allows for easy waste collection, while maximizing the use of cat litter. The Catit SmartSift is suitable for use with all clumping cat litters. The Catit SmartSift has an ingenious litter sifting system to refresh your cat’s litter with a simple pull of the lever. This delightfully quiet and cat-friendly process does not involve any motorized pieces capable of overheating, nor are there any expensive electronic parts to replace.