Urine Off Dog & Puppy Odor & Stain Remover Gallon Size contains the equivalent of 7.5 standard bottles! More economical per oz. , the Gallon Bottle is designed to treat larger stains or problem areas that require more then just a few "squirts". Urine Off Dog Formula is the #1 Veterinarian recommended product for dog urine odor and stain removal. In the past, dog urine odor and stains were nearly impossible to eliminate. Now with Urine Off Dog Formula you can permanently eliminate your dogs urine odor and stains from virtually any surface.