Amazon.com: Large Portable Cat Travel Litter Box with Zipperd Top for Medium, Large or Multiple Cats. Odor Control, Leak-Proof, Lightweight for Easy Carry, Easy Storage, Easy to Clean : Pet Supplies
ExquisiCat® Jumbo Flip Top Litter Pan with Door | cat Litter Boxes | PetSmart
New Age Pet® ecoFLEX™ Habitat'N'Home Litter Loo Cat Box | cat Litter Boxes | PetSmart
Travel Litter Box
Amazon.com: Large Portable Litter Box for Easy Travel with Large or Multiple Cats. Lightweight, Sturdy, Leak-Proof, Collapsible, Easy to Carry : Pet Supplies