*Never add litter to your ScoopFree Slide litter box or use another brand or type of litter. The crystal litter in all ScoopFree disposable litter trays is formulated especially for all ScoopFree products.
*Kittens less than 6 months old may experience a shortened litter tray life span. Kittens may also have softer stool than mature cats, which increases the likelihood that it may stick to the rake. Cats who consume a diet high in crude fiber, ash and byproducts may experience a shortened litter tray life span. Cats over 10 years and cats with health problems may also experience a shortened tray life.