The Kittyfriend Antibacterial Non Clumping Cat Litter is an economical option made with mineral granules that absorb urine and control odour and bacteria. The solid waste should be removed daily and the tray emptied completely at least once a week, and cleaned with a suitable disinfectant. To make the litter last longer and keep the tray clean, we recommend using Van Ness Litter Tray Liners. Non clumping or absorbent litters are generally more affordable to purchase than clumping litters, but may require more frequent replacing.