Flow Shield - AC Drain Line Cleaner and Maintainer

This 2-pack of 8oz AC drain line cleaner is a simple, effective solution for my home AC maintenance. The bio-enzymatic formula pours easily into the drain, breaking down buildup quickly to prevent clogs and overflows. As someone who’s dealt with water damage from blocked lines before, I appreciate the fast-acting results and up to 3 months of protection per bottle. It’s straightforward to use—no mess or tools needed. Highly recommend for keeping your AC running smoothly and avoiding costly repairs.

Drain line cleaner seems to be working as it should. If future checks show it not being as effective as expected I will return to update this review. We are also using it in the drain line of our dehumidifier and have noticed that we aren't experiencing the sour odor that was present before using the cleaner. The two bottle price is a good deal that makes it even better to purchase.

I live in Florida so the AC is practically working non-stop all summer long, with that comes the issue with clogged drain and water overflow causing either dripping or the AC to stop working.I basically had the repair service come every other month to drain the water and clean the pipes; so when I saw this I was excited but skeptic . I used it not knowing if it will work or not and it did keep the repair guy away so far , fingers crossed

This HVAC AC Drain cleaner works great.It is easy to use and two bottles is perfect when you have multiple units. It is a great value. I am happy with this product and would order it again.

This product has done exactly what I needed—kept my AC drain line clear and flowing without issues. I had problems in the past with the line clogging and causing water backup, but since using this cleaner regularly, I haven’t had any trouble.It’s easy to apply, safe to use, and the 2-pack is a good value and provides peace of mind for months at a time.