Engineered by the makers of the iFLO Smart A/C Drain Line Cleaning System, the iFLO Extreme A/C Drain Line & Drain Pan Cleaner is an advanced maintenance solution designed for high-performance HVAC systems. Its proprietary iFLOBiotic technology uses a professional-grade enzyme blend that helps break down organic buildup and residue inside your A/C drain pan and drain line, supporting clear and consistent flow. The time-released formula begins working within minutes and continues cleaning over time to help maintain optimal drainage. Use it to help address slow flow in condensate drain lines and apply monthly as part of routine maintenance for your drain pan, condensate line, and pump. Non-corrosive and safe for use with standard HVAC materials. For automatic, hands-free maintenance, try the iFLO Automatic A/C Drain Line and Drain Pan Cleaning System. The automatic version uses the same Extreme iFLOBiotic formula in a convenient cartridge that dispenses every two weeks to help reduce organic buildup and keep condensate lines flowing smoothly year-round. For challenging drain issues, use iFLO Severe Clog Relief. This 5X concentrated formula is specially developed for the toughest buildup in A/C drain systems, helping to restore flow quickly and effectively. For condensate pumps, pour 2 ounces directly into the pump box and let it sit for at least one hour. Recommended use: A monthly maintenance dosage of 6 ounces is advised. For recurring clogging issues due to complex plumbing layouts, bi-weekly applications may be beneficial. Helps keep your A/C system running efficiently Supports long-term system performance Reduces the likelihood of unexpected maintenance issues Directions: For A/C use – Turn off A/C by raising the thermostat at least 5 degrees or switching off the power. For buildup: Pour 3–6 ounces into the drain line opening. Wait 45–60 minutes, then turn the A/C back on. Repeat monthly as needed. For clogs: Pour 3–6 ounces into the drain line opening. Wait 45–60 minutes, then restart the system. Repeat if necessary. Tip: For best results, use a wet vac on the drain line outlet outdoors to help remove loosened debris.