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

I heard about this foam coil cleaner on social media and realized I had never cleaned our air conditioner. Turns out, it was disgustingly dirty, but this product worked like a charm! The foam expanded, lifted all the grime, and left the coils looking (and working) so much better. I noticed an improvement in airflow almost immediately. I’ll definitely be making this part of our yearly maintenance from now on. Great product that actually delivers!

Works great, but keep in mind one can will be lucky to do both sides of a condenser that is 3 tons or less. My 5 ton outdoor unit needed a full can for the inside of the coil, and a full can for the outside for 100% coverage.

Works as advertised -

I never really thought to clean my air conditioner until recently. I tried this product and it worked very well. I could not really believe how much crud came out of the coils. My air conditioner is so much quieter after using this product. I will be using this every year from now on.

Amazing product. I live in an apartment with central AC and it had a lot of water dripping that would cause the drain pan to overflow and make the small reservoir to get full causing overflow as the unit did not stop at all.I cleaned the drain line using vinegar and baking soda which helped a little.Anyway after changing the filter so many times as it got pretty wet, I tried to clean the coils which was a pain. Googling how to make my life easier I found this product. Used it and now my unit runs way more efficiently and cools my unit immediately (something I did not noticed when I moved in). Would definitely recommend.

My A/C unit was very dirty as I missed cleaning it last year. This product worked as described, but it took 2 cans in my case.

This mini split coil cleaner is exactly as advertised! I used it to get my mini split ready for summer, and it made the whole process quick and easy. The heavy-duty foam clung to the coils and fan blades, cutting through dust and grime effortlessly. I especially appreciated that no rinsing was required—just spray and let it do its job. It also left behind a nice lemon scent, which was a great bonus. My unit is now running cleaner and smelling fresher. If you're prepping your AC for the warmer months, this cleaner is a must-have!

Was disappointed in how small the stream was out of the sprayer. I paid extra for the brand because it sounded like the spray would be easier to cover the complete coils. Next time I will go with a less expensive brand.