The Litter Genie® Jumbo Refill offers 28 feet of refill film that can last up to 4 months for one cat, so you won’t have to constantly worry about buying and changing refills. Made with a multi-layer refill that blocks odors and keeps your home fresh and clean. The new Jumbo Refill lasts twice as long and uses 35% less cartridge plastic than the standard refills. Cleaning your cat litter has never been so fast and easy. Available in 1 pack, 2 pack, 4 pack and 6 pack.