HVAC GUYS – Flow Treat Tabs - 200 Tablets | AC Drain Line Cleaner | Prevents Odors, Keeps HVAC Drain Pan Clean, Prevents Overflow | One Tablet Lasts up to 4 Weeks

I originally purchased a smaller pack of these blue AC drain line cleaner capsules (10 count) and was happy with the results. I recently upgraded to the larger 200-count package, and the value is excellent for the quantity you get. The quality is just as reliable as before.Since my AC units are on the roof, using these regularly gives me peace of mind and will likely save me money in the long run by helping prevent potential water damage. Definitely a smart investment for anyone in a similar setup.

This product was considered the best according to my HVAC tech...

I use a lot of these tablets throughout the year in my own dehumidifiers, humidifiers and AC units to prevent mold and microbial growth. These tablets are a necessity since everything is so poorly designed anymore, sometimes to eeek out .01% more efficiency, or save a penny in manufacturing.Stagnant water is a big problem, especially with modern window AC units.In the past, I would use Pan Tablets from a local big box store. Each tablet would take anywhere from a week to 4 weeks to dissolve depending on the water flow. This is not a submerged application. We are talking about a trickle of water in a drain pan application.I assumed this large bottle of tablets were the same exact thing at more of a bulk price. Same color. Same size. Possibly the same general ingredients based on what I researched. But I don't think so. Upon opening the bottle, I got a strong whiff of ammonia. The other brand has no odor whatsoever.Additionally these seem to dissolve very quickly. One tablet is gone within an hour versus days or weeks with the other brand in the same low water flow environment.So because of these issues, I'm deducting one star, and may need to go back to using the other brand after more evaluation.

Much better deal than buying local and also available.

It works very well in removing stains from the water pan of the air conditioner.

Buenas tabletas para combatir el moho del A/C unit. Recomendado

So far they’ve kept the drain pan clear, add 2 tablets once a month.

Arrived on time and easy to use.