Urine-off actually removes urine, not just a temporary mask. Use to eliminate cat urine odors and stains. Can be used on all surfaces including upholstery, carpet, hardwood, tille, grout and vinyl flooring. Use urine-off urine finder to locate hard to find urine-soiled areas. Never dilute. Check for colorfastness. Bio-Enzymatic Formula. 16 OUNCE