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frontpagephoinix | Staff posted Mar 26, 2026 03:22 PM
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frontpagephoinix | Staff posted Mar 26, 2026 03:22 PM

19-Oz Frost King ACF19 Air Conditioner Coil Foaming Cleaner

$6.40

$16

60% off
Amazon
53 Comments 32,377 Views
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Deal Details
Update: This popular deal is still available.

Amazon has 19-Oz Frost King Air Conditioner Coil Foaming Cleaner (ACF19) on sale for $6.37. Shipping is free w/ Prime or on $35+ orders.

Walmart has 19-Oz Frost King Air Conditioner Coil Foaming Cleaner (ACF19) on sale for $6.37. Shipping is free w/ Walmart+ (free 30-day trial) or on orders of $35+.

Thanks to Deal Hunter phonix for sharing this deal.
  • Note: Availability for purchase may vary by location.
About this product:
  • Heavy-duty foam dissolves stains, removes grease & oil, and loosens dirt
  • Cleans coils, fan blades, and reusable air filters
  • Neutralizes odors from standing water in drain pans
  • Air conditioner coil foaming heavy duty detergent cleaner with low VOC formula
  • Pleasant lemon fragrance leaves deodorized, fresh smell after cleaning
  • No rinse necessary

Editor's Notes

Written by qwikwit | Staff
  • About this Store:
  • Additional Information:
    • Rated 4.6 out of 5 stars on Amazon based on over 17k customer reviews.
    • Our research indicates that this deal is $3.62 less (36% savings) than the next best available price from a reputable merchant with prices starting from $9.99 at the time of this post.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by phoinix | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Update: This popular deal is still available.

Amazon has 19-Oz Frost King Air Conditioner Coil Foaming Cleaner (ACF19) on sale for $6.37. Shipping is free w/ Prime or on $35+ orders.

Walmart has 19-Oz Frost King Air Conditioner Coil Foaming Cleaner (ACF19) on sale for $6.37. Shipping is free w/ Walmart+ (free 30-day trial) or on orders of $35+.

Thanks to Deal Hunter phonix for sharing this deal.
  • Note: Availability for purchase may vary by location.
About this product:
  • Heavy-duty foam dissolves stains, removes grease & oil, and loosens dirt
  • Cleans coils, fan blades, and reusable air filters
  • Neutralizes odors from standing water in drain pans
  • Air conditioner coil foaming heavy duty detergent cleaner with low VOC formula
  • Pleasant lemon fragrance leaves deodorized, fresh smell after cleaning
  • No rinse necessary

Editor's Notes

Written by qwikwit | Staff
  • About this Store:
  • Additional Information:
    • Rated 4.6 out of 5 stars on Amazon based on over 17k customer reviews.
    • Our research indicates that this deal is $3.62 less (36% savings) than the next best available price from a reputable merchant with prices starting from $9.99 at the time of this post.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by phoinix | Staff

Community Voting

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Model: Coil Cleaner A/C 19Oz

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Top Comments

WooHoo2You
9592 Posts
1867 Reputation
It isn't so much being "reputable" but use case. Most of the corrosive coil cleaners are contractor grade, meant to be used exclusively on certain types of condensing units / condensing coils / cooling towers (never on evaporator coils), require dilution, and heavy rising. They can be very hazardous in the hands of those who claim to 'know enough to be dangerous' (and generally are...but not in a good way).

This on the other hand is more of a foaming detergent / deodorizer vs a rather caustic 'cleaner' you likely find at an HVAC wholesaler.
obbitar
31 Posts
14 Reputation
jrm21086
21 Posts
18 Reputation
So not doubting this to be true, but I had inherited a 2/3 year old Hisense unit from my home's previous owners. Was in great shape. I'm obsessed with moldy ACs and always clean them really well. I did my usual trick of degreaser to clean and bleach water to sanitize. Not only did the bleach start to corrode some of the fins but I think I got degreaser in the motor bearings and the fan ran like s***. Had to throw it away. On my new units I used this spray. Not only is it easy to use, it's lemony fresh and did a much better job at cleaning. It also kills organisms without using bleach which is very harmful to the cheap thin metal that all AC units use for the fins.

53 Comments

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Mar 28, 2026 01:54 PM
856 Posts
Joined Apr 2006
davesgirlMar 28, 2026 01:54 PM
856 Posts
Thanks! The Spring to do list gets longer.
Mar 28, 2026 05:15 PM
8 Posts
Joined Sep 2017
JerryC2800Mar 28, 2026 05:15 PM
8 Posts
out of stock
Mar 28, 2026 05:40 PM
304 Posts
Joined Jul 2009
flames9Mar 28, 2026 05:40 PM
304 Posts
cheaper at amazon at $6.37 a can
1
Mar 28, 2026 11:45 PM
178 Posts
Joined Nov 2018
porksmugglersMar 28, 2026 11:45 PM
178 Posts
Quote from Luigis3rdcousin :
I used this in 2024 and our AC hadn't ever gotten cleaned in 20 years and it wasn't that dirty. So I'll pause this time. I guess depends where your AC is and how dirty it gets so fast
Most homeowners, and lazy techs look at the wrong side of the evap coil, the intake is what cakes up, even with proper filtration, while the visible side always looks clean. The most common foaming brand used in industry is Nu-Calgon. I buy Purafilter 2000 by the gallon, requires dilution, safe on evap and condensers. Make sure you're checking both sides of each.
Last edited by porksmugglers March 28, 2026 at 04:49 PM.
Mar 30, 2026 02:16 PM
25 Posts
Joined Apr 2021
SensibleString1707Mar 30, 2026 02:16 PM
25 Posts
Do these have good shelf life and is it a good idea to stock up on?
Mar 31, 2026 01:39 PM
100 Posts
Joined Feb 2021
Michelle_my_belleMar 31, 2026 01:39 PM
100 Posts
to note, it does not come with a tube for hard to reach areas. not suitable for my cars airconditioner.
Mar 31, 2026 05:04 PM
444 Posts
Joined Mar 2010
ConsumerAdvoCatMar 31, 2026 05:04 PM
444 Posts
Can it restore refrigerator coils to like-new? Where will all of the grimey dust go?

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Pro
Mar 31, 2026 05:28 PM
228 Posts
Joined Jul 2018
milkmee6
Pro
Mar 31, 2026 05:28 PM
228 Posts
Same price on Amazon
Pro
Deal Editor
Apr 01, 2026 08:41 PM
22,090 Posts
Joined Aug 2014
qwikwit
Pro
Deal Editor
Apr 01, 2026 08:41 PM
22,090 Posts
This deal is still available.
Apr 01, 2026 08:46 PM
6,050 Posts
Joined Mar 2006
Core2QuadApr 01, 2026 08:46 PM
6,050 Posts
Quote from WildflowerGuru :
I use this with a plastic tube attached to reach vehicle heater cores. Clean the living F out of them. Heater cores get loaded with hard to remove accumilated substances. Makes a huge difference.
Can you describe your process more?
Apr 01, 2026 09:01 PM
2,289 Posts
Joined Feb 2010
MR_FLY_GUYApr 01, 2026 09:01 PM
2,289 Posts
Quote from KnowsItToBeTrue :
Careful, idk about this one but some of these cleaners are corrosive and can do more damage than good.
This is is great. No issues. But you will need 2 if you have a decent sized unit/house.
Apr 01, 2026 09:03 PM
2,289 Posts
Joined Feb 2010
MR_FLY_GUYApr 01, 2026 09:03 PM
2,289 Posts
Quote from ConsumerAdvoCat :
Can it restore refrigerator coils to like-new? Where will all of the grimey dust go?
New no. 10x better yes. The debris and grime or the like will be rinse off in to the center part and drain. This works great for cleaning appearance and cooling. I will need 2 to be thorough tho
Apr 01, 2026 11:52 PM
407 Posts
Joined Jul 2008
PauseAndConnectApr 01, 2026 11:52 PM
407 Posts
Thanks OP
Apr 02, 2026 12:36 AM
731 Posts
Joined Jun 2013
Nerd_Baller1Apr 02, 2026 12:36 AM
731 Posts
Attention Tesla owners lol. This is what you use to get rid of that awful dirty sock smell after AC runs on older ish vehicles

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Apr 02, 2026 12:50 AM
1,072 Posts
Joined Nov 2008
hydrocynusApr 02, 2026 12:50 AM
1,072 Posts
Ordered 10. Thanks. Max is 3 With amazon.

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