Frost King ACF19 Foam Coil Cleaner, 1.18 Pound (Pack of 1), 19 Ounce

Excellent AC cleaner. Fantastic, & easy to use. It really cleans well. I removed the front cover of my window unit & sprayed the foam on it, then on outside fins, let it stay on a while. I gently wiped the front of the fins with an old towel. Then I used the top of the can & old tooth brush to clean the fins. Used a spray bottle of water, also. I was shocked at how much gunk came out. This product is worth every cent. Smells great.

I purchased this after paying an air-conditioning company $100 to clean my AC unit. In my opinion I was able to do a professional quality job with this product. It is a great value. It’s easy to use and the foam fills the fins effectively and does a great job of pushing their debris out. Also, this product is rinse free! Which was nice because I didn’t have to drag a hose onto the roof and spray it into my air conditioning unit. I am not an AC technician this product was extremely easy to use for your average. I highly recommend this product. I plan on using it on my unit every spring. The effectiveness of my unit doubled after the cleaning!!I have included a before and after photo

Had an old window A/C unit that was taken care of very well. Instead of a new A/C one I figured I give it a try to clean the old one. I left the unit in place in the window ( I'm 70 ) and did not want to try to remove the heavy old one. It took only a few minutes to spray on and I did it twice to insure the coils were clean. Now the unit runs almost as good when it was new. Worth it to try before you spend a ton of money on a new one when your old one was just dirty.

I used the Frost King ACF19 Foam Coil Cleaner on my air conditioner unit, and I couldn’t be happier with the results. My A/C had been running less efficiently lately airflow was weak and it just wasn’t cooling like it used to. I sprayed this cleaner on the coils, and within minutes the thick foam expanded, clung to the surfaces, and started breaking down all the built up dirt and debris.The best part? No rinsing or scrubbing needed,. however I did rinse it after the foam slowly dissolved and carried the grime away on its own. After letting it dry and turning the unit back on, I immediately noticed stronger airflow and cooler air. It honestly felt like the A/C had gotten a full tune-up.This cleaner is super easy to use, smells fresh, and one can covers a good amount of area. It also handled the job without damaging anything—perfect for regular maintenance. If your A/C hasn’t been cleaned in a while, don’t call a technician just ye, try this first. It works!

The media could not be loaded. Worked great for cleaning the compressor and evaporator coils. We moved into a house where maintenance was not high on the previous owner's priority list. The 15 year old A/C was running non-stop, the evaporator coil was freezing over, and sweating everywhere and it wasn't cooling.The upstream side of the evaporator coil was covered in dust and pet hair. I used the compressor and some air to blow the majority of that out from the downstream side, then thoroughly coated both sides of the coil, let it sit, then reapplied to the dirtier sections. It was evident the grime was dissolving and starting to run into the drip pan. I like the self-rinsing aspect. More about that later. Also a good time to make sure the drain line is cleared.Now for the compressor coil. I rolled up my sleeves and dove in I disconnected power to the compressor unit, removed the fan and coil shroud, liberally sprayed the entire coil and let it sit, per the instructions, then I used the hose on a gentle spray from the inside (avoiding electrical components). Put it all back together, with those frustratingly small sheet metal screws, and turned the power back on.I was expecting the residue on the evaporator coil to send a smell through the entire house, so we initially opened a bunch of windows and doors, before turning the air back on. The citrus smell was apparent, but not unpleasant.The airflow was much better, and as it rinsed itself from the coils, over the course of the next day, airflow improved even more.We saved a few hundred dollars on a tech cleaning our unit and we know it was done thoroughly. It may get us through another summer

This Frost King ACF19 Foam Coil Cleaner got put to the test on a 3.5-ton AC condenser that looked like it hadn't been cleaned since flip phones were a thing. About 1.75 cans later, a shocking amount of dirt came pouring out—kind of like giving the unit a spa day after years in the desert.The cleaner foamed up nicely and clung where it needed to. One neat trick: instead of fully removing the condenser lid, just propped it up with an upside-down shop broom—worked like a charm and saved some hassle. The spray itself isn’t exactly cheap, but the can packs a solid amount of product, enough to really get the job done.Power usage is being monitored—recorded kWh usage the day before and the day after cleaning, with temperatures staying in the sweltering AZ 75–108°F range both days. If the theory holds, there should be a nice little dip in energy consumption thanks to cleaner coils doing less work.