AnyAir Fin Comb, Steel Brush for Air Conditioner, Cooler or Radiator, Heavy Duty AC Fin Comb, Silver

We moved into an apartment with an AC unit that the previous tenants had run without a filter and all the fins were bent, resulting in the flashing filter alert light flashing.I researched various fin straightening tools and this seemed the best, I watched videos on Youtube to see how to use it, and it worked a treat, I had to use it up and down and right to left to straighten the fins, they weren't perfect but they were a heck of a lot better. Don't try to fit the metal comb in between the fins, just go for it, stroke the tool up and down the fins and they will straighten out.

Well, kinda worked, but sure isn't easy. And it mangles the fins, even if it does "straighten" them out some. Not what I was expecting, doesn't work very easy.

didn't work so well on a lot of damage i had to the back of my a/c unit, i had to use a thin razor knife to get the majority of the bent/flattened area first, then use the comb.

Works perfectly with any air conditioner. I have a camper and it works there too. My machines are working better than ever.

Works pretty well, smells good.

Did not do what it was advertised to

Doesn't really work on a home AC exterior foil, the fins are finer than this comb really works for.

Good tool. Took a minute to figure out the best way to use it because of lack of any instructions. Satisfied with the tool.