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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 32,140 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

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Top Comments

WooHoo2You

9588 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

LavenderWren3996

Apr 02, 2026 01:49 AM

239 Posts

Joined Jul 2025

LavenderWren3996Apr 02, 2026 01:49 AM

239 Posts

Quote from MagentaEducation252

This one is quite reputable. I missed the other sale so this is perfect for spring prepping for the summer heat.

Agreed used it on the same unit for over 20 years still going strong

TenseScent5337

Apr 02, 2026 03:29 AM

235 Posts

Joined Nov 2025

TenseScent5337Apr 02, 2026 03:29 AM

235 Posts

Quote from debenbrie

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

spray and hose off my outside coil unit? Any precautions?

BaudLord

Apr 02, 2026 12:25 PM

1,406 Posts

Joined Sep 2008

BaudLordApr 02, 2026 12:25 PM

1,406 Posts

Quote from TenseScent5337

spray and hose off my outside coil unit? Any precautions?

Turn power off to the unit, breaker or by pulling the disconnect. It's best to rinse from inside to outside, so remove the top fan for access. Honestly for outdoor coils, just rinsing with water is fine. Use a garden hose. Don't forcibly spray with like a nozzle as it can bend fins. Just let the open hose rinse it out.

Paul33570

Apr 02, 2026 01:25 PM

312 Posts

Joined Jun 2013

Paul33570Apr 02, 2026 01:25 PM

312 Posts

[thank you picked two up!

QUOTE=phoinix;183284040]Amazon [amazon.com] has 19-Oz Frost King ACF19 Air Conditioner Coil Foaming Cleaner for $6.37.
Shipping is free with Prime or on $35+ orders.

Price
$9.73 lower (60% savings) than the list price of $16.10
$2.14 lower (25% savings) than the previous price of $8.51

Subscribe & Save
0%: $6.37
5%: $6.05
Add to next delivery [amazon.com] (with free shipping)
fillers [amazon.com]

Customer reviews
4.6⭐ / 17,069
4,000+ bought in past month

amazon.com/dp/B007I7KZN0 [amazon.com]

Please report the deal if expired
My other deals[/QUOTE]

ninjaslipper

Apr 02, 2026 02:34 PM

79 Posts

Joined Nov 2005

ninjaslipperApr 02, 2026 02:34 PM

79 Posts

It's dead for me @ Amazon, but Walmart still has it for $6.37.

c3688t

Apr 02, 2026 03:34 PM

831 Posts

Joined Apr 2008

c3688tApr 02, 2026 03:34 PM

831 Posts

So many thumbs up. Good post

FeistyGame5623

Apr 03, 2026 01:22 PM

21 Posts

Joined Feb 2026

FeistyGame5623Apr 03, 2026 01:22 PM

21 Posts

Wouldn't 10 minutes of my time and using a garden hose to wash the coils do the same thing?

EdEd1190

Yesterday 11:55 AM

3,357 Posts

Joined Jun 2014

EdEd1190Yesterday 11:55 AM

3,357 Posts

Dead on Amazon and Walmart.

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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Deal History 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.

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