Why Flush: Urine Neutralizer Toilet Spray (3 Bottles/6 mo Supply). Conserve Water! Reduce Flushing! Overall home water use reduced by more than 20%! 1200 gallons of fresh water saved per bottle! Instantly neutralizes urine, while adding a fresh citrus scent and blue-green color. Completely safe for septic systems and great for RV's and Boats! Why Flush is made in the U.S.A. from vegetable based cleaners, essential oils, and food grade colors.