AC Drain Line Cleaner | Prevent Buildup and Overflow | 8oz - Up to 3 Months of Protection | Fast Acting & Long Lasting Bio-Enzymatic Formula Keep your HVAC system breathing easy and your property protected with Flow Shield AC Drain Line Cleaner. Designed by experts and trusted by pros, this small bottle packs a serious punch—offering a powerful, safe solution for a cleaner, longer-lasting system. Whether you're a homeowner or a technician, Flow Shield delivers peace of mind with every pour. Clogged drain lines may seem minor, but they can quietly cause serious water damage and expensive repairs. That’s where Flow Shield comes in. Designed to prevent blockages before they begin, this bio-enzymatic ac cleaner keeps your system running smoothly and your home safe from unexpected leaks. Just one pour is all it takes. Flow Shield’s fast-acting formula immediately begins breaking down buildup, thanks to its powerful blend of enzymes. But it doesn’t stop there—it continues working for up to three months, offering long-lasting protection without the need for scrubbing or constant maintenance. It’s the set-it-and-forget-it solution for a critical part of your HVAC system.Whether you're maintaining a central air system, a ductless mini-split, a dehumidifier, or even a refrigerator, this cleaner works across all HVAC and refrigeration drain lines. It’s trusted by industry professionals and built to perform just as well in residential homes as on busy job sites. As it clears your lines, it also clears the air. Flow Shield doesn’t just prevent clogs—it targets the organic buildup that causes unpleasant odors, using 200 billion CFU per gallon and high-performance enzyme accelerators. That means fresher, cleaner air with every cycle and a noticeable difference in indoor air quality.
