Naturally Fresh Multi-Cat Natural Cat Litter. For families managing litter boxes used by two or more cats, Naturally Fresh Multi-Cat litter has a malodor counteractant that tackles both urine and fecal smells, an ideal feature for households with multiple cat kids Counteractant slays litter box smells: This all-natural proprietary malodor counteractant helps tackle multi-cat litter box odors in homes with two or more cat kids. Walnut shells organically neutralize odor: Naturally Fresh makes their exclusive eco-friendly cat litter out of the fibrous material of the walnut shell due to its organic ability to eliminate odor better than clay litter and other natural litters. Absorbs 3X better than clumping clay litter*: Naturally Fresh's odor absorption capacity is at least 3 times greater than the leading clay litter, so you can refill the cat litter boxes less often. *In an independent study, Naturally Fresh Cat Litter was found to absorb ammonia odors three times better than the leading clay litter. Available Sizes: 14 lb / 26 lb