Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
Heads up, this deal has expired. Want to create a deal alert for this item?
expiredphoinix | Staff posted Jun 27, 2026 10:20 PM

19-Oz Frost King ACF19 Air Conditioner Coil Foaming Cleaner

$6.35

$16

60% off
Walmart
14.1K Views
Visit Walmart
Deal Details
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
  • No rinse necessary for cleaning AC units

Editor's Notes

Written by Neo45 | Staff
  • About this Store:
    • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
    • If you're not a student, there's also a free 1-Month Amazon Prime trial available.
    • 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.
No Longer Available:

Original Post

Written by phoinix | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
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
  • No rinse necessary for cleaning AC units

Editor's Notes

Written by Neo45 | Staff
  • About this Store:
    • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
    • If you're not a student, there's also a free 1-Month Amazon Prime trial available.
    • 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.
No Longer Available:

Original Post

Written by phoinix | Staff

Community Voting

Deal Score
+70
Good Deal
Visit Walmart

Price Intelligence

Model: Coil Cleaner A/C 19Oz

Deal History 

Sale Price
Slickdeal
  • $NaN
  • Today

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!

28 Comments

Sign up for a Slickdeals account to remove this ad.

Jun 28, 2026 8:47 PM
3K Comments
Joined Nov 2005
kabukichoJun 28, 2026 8:47 PM
3K Comments
does a ductless unit need this at some point?
Jun 28, 2026 8:57 PM
3K Comments
Joined Nov 2005
kabukichoJun 28, 2026 8:57 PM
3K Comments
Quote from legolas.mcm :
Use this on my mini splits every year along with the outside unit.

what are you spraying onto the inside house portion of the mini split?
Jun 28, 2026 10:39 PM
427 Comments
Joined Nov 2025
TenseScent5337Jun 28, 2026 10:39 PM
427 Comments
Do you have to open the unit or spray from outside good enough?
Jun 29, 2026 12:22 AM
2.2K Comments
Joined Aug 2015
shortyman24Jun 29, 2026 12:22 AM
2.2K Comments
Quote from OrangeJulius :
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.
Thats what I did too.
Jun 29, 2026 1:33 AM
1.8K Comments
Joined Aug 2007
OrangeJuliusJun 29, 2026 1:33 AM
1.8K Comments
Quote from TenseScent5337 :
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.
Jun 29, 2026 1:45 AM
3K Comments
Joined Nov 2005
kabukichoJun 29, 2026 1:45 AM
3K Comments
out of stock for me.
Jun 29, 2026 2:20 AM
13 Comments
Joined Dec 2017
ti99azJun 29, 2026 2:20 AM
13 Comments
Good deal, works very well

Sign up for a Slickdeals account to remove this ad.

Jun 29, 2026 10:47 AM
465 Comments
Joined May 2007
Mr_MarvelusJun 29, 2026 10:47 AM
465 Comments
Still available at Amazon
Jun 29, 2026 8:22 PM
18 Comments
Joined Apr 2016
JayB2277Jun 29, 2026 8:22 PM
18 Comments
dead.
Jul 1, 2026 3:58 PM
6.7K Comments
Joined Dec 2004
CaleoJul 1, 2026 3:58 PM
6.7K Comments
Quote from mcali786 :
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.
Last edited by Caleo July 1, 2026 at 09:01 AM.
Jul 2, 2026 1:11 PM
1.5K Comments
Joined Jun 2006
mcali786Jul 2, 2026 1:11 PM
1.5K Comments
Quote from Caleo :
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.
Jul 2, 2026 3:53 PM
1 Comments
Joined Feb 2024
BraveLocket318Jul 2, 2026 3:53 PM
1 Comments
its back on amazon for 6.37
Jul 5, 2026 9:03 PM
719 Comments
Joined Aug 2023
t3t4Jul 5, 2026 9:03 PM
719 Comments
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.

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!

Popular Deals

Trending Deals