Scented version Exclusively for cat-safe, hygienic cleaning of thePetnovations CatGenie 120 Self-Flushing Self Washing Cat Litter Box (Tabby) Decontaminates the Granules and cat box of germs and odors Cannot be used with theOld Catgenie 60SaniSolution 120 Cartridge dispenses the exact amount of cleaning solution needed to clean the Granules and GenieBowl and to keep the CatGenie running properly. Made with same ingredients used by veterinarians to sterilize their exam and operating areas.One Cartridge lasts for 120/240 washes depending on setting. On Cat Activation you will get 240 washes. CatGenie needs Smart Cartridges to run. It is best to keep a supply on hand. The catgenie will alert you when your SaniSolution is low.