IRIS USA Large Top Entry Cat Litter Box with Lid, Enclosed Covered Cat Litter Box for Indoor Cats, Dog Proof Design, Odor Control, Litter Tracking

IRIS USA Top Entry Cat Litter Box is a stylish two-piece enclosed box specifically designed to keep more litter inside the box. This litter box has a grooved lid or a filtered lid. According to customer reviews, the grooved lid allows the litter to sit on top of the lid while the filtered lid has holes for the litter to fall back into the container. One reviewer suggests choosing the grooved lid to avoid cats getting stuck and falling in. It is reported that the IRIS USA Top Entry Cat Litter Box does not remove litter from cats' paws to prevent litter from getting outside the box when they are done. However, it is believed to keep more litter inside the box, and reviewers suggest the wood pellet-type litter can further reduce the amount of pellets that leave the box. Concerns were raised about whether a 15-pound cat could fit through the opening, whether the cat would cause the top to cave in while jumping on it, and whether there was enough turn-around room inside. Customers mention that the lid stays secure and the cats have sufficient space for turning around. The reviewers recommend choosing the split top version if the cat refuses to use enclosed boxes, while one reviewer suggested removing the lid to encourage the cat to use the box. Overall, it seems that IRIS USA Top Entry Cat Litter Box is effective in containing the litter, but customers need to choose wisely between the grooved lid and the filtered lid and follow the recommendations to ensure their cats are comfortable using it.