ULTRA ODOR SEAL cat litter is the revolution in cat litter products. It is a new product with outstanding clumping and odor lock abilities. Thanks to the special formula and compound, Ultra Odor Seal cat litter has an outstanding odour control thanks to activated carbon added. The bad smell is locked in an hour and completely vanished after 24 hours. Besides, it forms ultra-fast clumps that makes it very easy to scoop away.