Litter Genie plus refill cartridge for use with the Litter Genie cat litter disposal system. The Litter Genie plus refill cartridge 2-pack for litter. Cat litter disposal system offers 10.5 feet of bags for the Litter Genie and lasts up to two months for one cat. This litter plus refill package contains a total of six refill cartridges, lasting up to six months with one cat. Easy to replace and long-lasting, keeps your litter area clean and free of odor for a healthier, most pleasant environment.