Walmart has 19-Oz Frost King Air Conditioner Coil Foaming Cleaner (ACF19) on sale for $6.37. Shipping is free with Walmart+ (Free 30-Day Trial) or orders $35 or more.
Thanks to Deal Hunter phoinix for sharing this deal.
About this product:
Foam cleans coils fan blades and reusable air filters
Heavy-duty detergent dissolves stains grease oil and loosens dirt
Neutralizes odors from standing water in drain pans
Low VOC formula with pleasant lemon fragrance leaves fresh smell
Most items sold & shipped by Walmart.com can be returned for free, either to a store or by mail up to 90 Days after item is delivered. See the Walmart returns page for returns information.
Additional Information:
This offer matches our recent and very popular front page deal from June 2026 which earned over 75 thumbs up.
Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.
This collaborative space allows users to contribute additional information, tips, and insights to enhance the original deal post. Feel free to share your knowledge and help fellow shoppers make informed decisions.
Walmart has 19-Oz Frost King Air Conditioner Coil Foaming Cleaner (ACF19) on sale for $6.37. Shipping is free with Walmart+ (Free 30-Day Trial) or orders $35 or more.
Thanks to Deal Hunter phoinix for sharing this deal.
About this product:
Foam cleans coils fan blades and reusable air filters
Heavy-duty detergent dissolves stains grease oil and loosens dirt
Neutralizes odors from standing water in drain pans
Low VOC formula with pleasant lemon fragrance leaves fresh smell
Most items sold & shipped by Walmart.com can be returned for free, either to a store or by mail up to 90 Days after item is delivered. See the Walmart returns page for returns information.
Additional Information:
This offer matches our recent and very popular front page deal from June 2026 which earned over 75 thumbs up.
Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.
Deal History includes data from multiple reputable stores, such as Best Buy, Target, and Walmart. The lowest price among stores for a given day is selected as the "Sale Price".
Sale Price does not include sale prices at Amazon unless a deal was posted by a community member.
I ended up using the jet setting on my garden hose, because my water pressure isn't that high to begin with. Indeed, I sprayed from the inside out on the first pass. After it was dry, I flushed from the outside to remove any residue. It was seriously caked.
AC unit is running much more efficiently now, much less often for the same result.
Do you have to open the unit or spray from outside good enough?
Depends in the AC unit, but most have a protective case or outer frame covering the coils. You'll have to remove that to access the interior of the AC unit and to brush off residue. There are quite a few guides on YouTube for this process. Some are a big pain to remove. Mine took several hours to remove, clean, and reassemble, but I have a very old unit.
Spray it and let it sit for few mins and use garden hose low flow setting to outward direct the water from fins right?
Yep. I ended up using one of the more aggressive settings on my sprayer though to really blast out some caked-on debris. Gotta be careful doing so though because it can bend your fins.
I'd recommend doing this at least every other year, possibly even every year before summer peak temps hit. I hadn't done mine in ~2yrs and the improvement in efficiency I got afterwards was VERY noticeable. Power consumption dropped a solid 30% or more for the same level of cooling.
Yep. I ended up using one of the more aggressive settings on my sprayer though to really blast out some caked-on debris. Gotta be careful doing so though because it can bend your fins.
I'd recommend doing this at least every other year, possibly even every year before summer peak temps hit. I hadn't done mine in ~2yrs and the improvement in efficiency I got afterwards was VERY noticeable. Power consumption dropped a solid 30% or more for the same level of cooling.
oh wow. thanks will try to do it after this heat dome sets away.
As an "X" refrigeration guy that transferred to residential HVAC, I can tell you this is expensive at any price! First of all, "foam" never gets into where you really need it! Let's break it down real simple, you need a cleaner, and then something to rins that cleaner off. Castrol Superclean, buy it by the gallon and thank me later. Spray on heavy through all cores, let sit 10 min, rins off, your job is DONE!
You are welcome.
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what are you spraying onto the inside house portion of the mini split?
AC unit is running much more efficiently now, much less often for the same result.
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I'd recommend doing this at least every other year, possibly even every year before summer peak temps hit. I hadn't done mine in ~2yrs and the improvement in efficiency I got afterwards was VERY noticeable. Power consumption dropped a solid 30% or more for the same level of cooling.
I'd recommend doing this at least every other year, possibly even every year before summer peak temps hit. I hadn't done mine in ~2yrs and the improvement in efficiency I got afterwards was VERY noticeable. Power consumption dropped a solid 30% or more for the same level of cooling.
You are welcome.
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