The iFLO cleaning solution is a powerful patented formula designed combat zooglea, dirt, and debris with the iFLO Extreme bio-enzymatic surfactant, AC drain line cleaner formula. Engineered to prevent clogs, floods, and AC shutdowns, it keeps your AC drain line and drip pan clear & clean, ensuring your system runs without interruption. This 72 oz bottle provides up to a 12 month supply.