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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 32,400 Views

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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:
- 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.
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

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:
- 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.
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

Deal Score

+174

Get Deal at Amazon

Price Intelligence

Model: Coil Cleaner A/C 19Oz

Deal History

Sale Price

Slickdeal

$NaN

Today

Post Date	Sold By	Sale Price	Activity
03/24/26	Amazon	$6.37 Popular	6
08/18/25	Walmart	$4.55 Frontpage	50

Unregistered (You)

Top Comments

WooHoo2You

9593 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

$6.37 at Walmart.com

https://www.walmart.com/ip/Frost-...nMQAvD_BwE

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

Splash

Mar 26, 2026 06:28 PM

236 Posts

Joined Jul 2005

SplashMar 26, 2026 06:28 PM

236 Posts

nice - used this for my model 3.

WildflowerGuru

Mar 26, 2026 07:15 PM

3,801 Posts

Joined May 2015

WildflowerGuruMar 26, 2026 07:15 PM

3,801 Posts

Our community has rated this post as helpful. If you agree, why not thank 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.

Luigis3rdcousin

Mar 26, 2026 09:42 PM

5,873 Posts

Joined Jul 2017

Luigis3rdcousinMar 26, 2026 09:42 PM

5,873 Posts

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

TT_Vert

Mar 26, 2026 11:35 PM

46 Posts

Joined Apr 2018

TT_VertMar 26, 2026 11:35 PM

46 Posts

Quote from BloodAngl

Highly recommended. I use this twice a year on my RV ACs with excellent results. If I hadn't stocked up last deal I'd jump on this.

Does your condenser really get that dirty? I use it once every 2 or 3 years and mine still looks pretty good after that.

BloodAngl

Mar 27, 2026 12:05 AM

386 Posts

Joined Nov 2006

BloodAnglMar 27, 2026 12:05 AM

386 Posts

Quote from TT_Vert

Does your condenser really get that dirty? I use it once every 2 or 3 years and mine still looks pretty good after that.

Yeah, it's not filthy, but they need the cleaning and performance is boosted afterwards. We run those two beasts nonstop through the summer, so I want to try and keep them clean to avoid any overworking. One location is across from a gravel pit so get a lot of dust in the air, as well. If it was clean-ish, I absolutely would not be climbing up there any more than necessary. Smilie

UniqueMorning5442

Mar 27, 2026 02:46 AM

45 Posts

Joined Nov 2019

UniqueMorning5442Mar 27, 2026 02:46 AM

45 Posts

I've used this before and it's OK but the deal seems to be gone. It's $11.35 on my Amazon Frown

sdineen

Mar 27, 2026 02:50 AM

286 Posts

Joined Mar 2008

sdineenMar 27, 2026 02:50 AM

286 Posts

dead dead dead

MellowRecess554

Mar 27, 2026 12:32 PM

18 Posts

Joined Jul 2025

MellowRecess554Mar 27, 2026 12:32 PM

18 Posts

Still $6.37 for me.

Poppmatic

Mar 27, 2026 08:08 PM

332 Posts

Joined Aug 2017

PoppmaticMar 27, 2026 08:08 PM

332 Posts

Should people use this for their fridge condensers?

debenbrie

Mar 28, 2026 01:56 AM

105 Posts

Joined Jul 2010

debenbrieMar 28, 2026 01:56 AM

105 Posts

Quote from skerlegon

I use it on mine. No issues.

I cleaned mine with it. It did a good job.

MarloStanfield

Mar 28, 2026 05:51 AM

233 Posts

Joined Dec 2020

MarloStanfieldMar 28, 2026 05:51 AM

233 Posts

Out of stock

JimJ4348

Mar 28, 2026 11:22 AM

21 Posts

Joined Mar 2014

JimJ4348Mar 28, 2026 11:22 AM

21 Posts

Quote from KnowsItToBeTrue

Careful, idk about this one but some of these cleaners are corrosive and can do more damage than good.

Seafoam is good

pcrh

Mar 28, 2026 12:43 PM

367 Posts

Joined Jul 2016

pcrhMar 28, 2026 12:43 PM

367 Posts

Quote from JimJ4348

Seafoam is good

I use this on my mini splits

https://a.co/d/0do5NSOC

Also add one of these tabs a month in summer
https://a.co/d/01sjuDvG

GreyRiver608

Mar 28, 2026 12:55 PM

110 Posts

Joined May 2018

GreyRiver608Mar 28, 2026 12:55 PM

110 Posts

Perfect timing, summer is around the corner n AC is about to come out

KeithS1445

Mar 28, 2026 01:17 PM

58 Posts

Joined Feb 2018

KeithS1445Mar 28, 2026 01:17 PM

58 Posts

use this at least once a year

Unregistered (You)

Grocery Cleaning Supplies Household Goods Home & Home Improvement Storage & Cleaning Building & Remodeling Supplies HVAC Maintenance & Supplies

Rating:	(4.6 out of 5 stars)
Reviews:	17,069 Amazon Reviews
Manufacturer:	Thermwell Products Co., Inc
Model Number:	ACF19
Product SKU:	B007I7KZN0
ASIN:	B007I7KZN0
Brand:	Frost King
Item Dimensions LxWxH:	19 x 8.2 x 13 inches
Item Weight:	1.5 pounds
Item model number:	ACF19
Manufacturer:	Thermwell Products Co., Inc

19-Oz Frost King ACF19 Air Conditioner Coil Foaming Cleaner

$6.40

$16

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19-Oz Frost King ACF19 Air Conditioner Coil Foaming Cleaner

$6.40

$16

Editor's Notes

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Original Post

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