BIG D ENZYM D digests organic waste & destroys odors associated with the decay of organic matter. It is highly effective in eliminating the organic salts associated with urine which cause odors. Specially bred enzyme / bacteria cultures attack & break down uric acid molecules by digesting the source, just the way nature does it but in minutes rather than days or weeks. ENZYM D also contains BIG D deodorant, which neutralizes odors on contact. Scent: Lemon; Physical Form: Liquid; Application: Odor Control; Capacity (Volume): 1 gal.