The insert of the present invention comprises a bottom with slots so it allows the liquid waste to flow through without spreading to the remaining litter. The slots are two different sizes so that various types of litter can be used. With the feature, the liquid waste can be separated from the solid waste, thus it makes the cleaning much easier than using a regular litter pan or box. Since less litter is soiled by the liquid waste, the amount of litter to be replenished every day can be reduced, thus, it can cut down the consumption of litter. As a result, the owner can save money.
