Simple Solution Stain & Odor Remover for Cats: 1 Gallon #11215 Cat owners agree there is no odor quite as pungent as spray from an un-neutered male cat. At last there is a product scientifically formulated especially for all those tough feline odors and stains. Simple Solution Cat Urine Stain & Odor Remover utilizes unique enzymes and Pro-Bacteria to break down the glue-like proteins in urine. Enzymes break down organic residue and the Pro-Bacteria eat the residue entirely to permanently eliminate stains and odors from carpets, upholstery or any other water-surface surface.-á-áAvailable in the following sizes: - 20 fl. oz. - 32 fl. oz. - 32 fl. oz. spray bottle - Gallon - Cat Odor & Stain simple solution, simplesol, simple solution, solution simple, simple-solutions, simple solotions