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Frost King

Frost King Air Conditioner Filters, 15 in. x24 in. x3/16 in. , Open Cell Foam

  • Based on 1,427 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Jul 2
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Color: Clear


Size: 15" x 24" x 1"


Features

  • Manufacturer: THERMWELL
  • Manufacturer Part Number: F1524
  • Frost King Washable Foam Air Filter For Air Conditioners, 24X15X1/4 In. - 471002
  • 15-Inch X 24-Inch X 1/4-Inch Air Conditioner Filter
  • Frameless Polyurethane Design
  • Helps Remove Dust, And Pollen From The Air For Allergy Relief
  • Lasts Up To 36 Months
  • Washable, And Reusable Product
  • 15-Inch X 24-Inch X 1/4-Inch Air Conditioner Filter
  • Frameless Polyurethane Design
  • Helps Remove Dust, And Pollen From The Air For Allergy Relief
  • Lasts Up To 36 Months
  • Washable, And Reusable Product

Description

15-Inch x 24-Inch x 1/4-Inch Air Conditioner Filter. Frameless polyurethane design and helps remove dust and pollen from the air for allergy relief. Lasts up to 36 months. Providing with long lasting effectiveness. Product is economical, being that it is both washable and reusable. From the Manufacturer 15-Inch x 24-Inch x 1/4-Inch Air Conditioner Filter. Frameless polyurethane design, and helps remove dust and pollen from the air for allergy relief. Lasts up to 36 months. Providing with long lasting effectiveness. Product is economical, being that it is both washable, and reusable. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Manufacturer Contact Information See more

Brand: Frost King


Material: Foam (Polyurethane)


Product Dimensions: 24"L x 15"W x 1"Th


Compatible Devices: Air Conditioner


EU Spare Part Availability Duration: 36 Months


Item Weight: 0.01 Ounces


Filter Mounting Type: Slide In


Filter Shape: Rectangular


UPC:


Air Filter Construction: Pad/Roll


Compatible Devices: Air Conditioner


Filter Mounting Type: Slide In


Filter Shape: Rectangular


Product Grade: new or lightly used


Common Applications: Appliances


Item Dimensions L x W x Thickness: 24"L x 15"W x 1"Th


Item Weight: 0.01 Ounces


Unit Count: 1.0 Count


Material Type: Foam (Polyurethane)


Air Filter Construction: Pad/Roll


EU Spare Part Availability Duration: 36 Months


Brand Name: Frost King


Model Number: F1524


UPC: 077578030517


Number of Items: 1


Manufacturer: Thermwell Products Co., Inc


Manufacturer Part Number: F1524


Item Type Name: .....


Included Components: ....


Manufacturer Contact Information:


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jul 2

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View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Cheap, easy to cut, and works great without restricting airflow
Color: Clear Size: 15" x 24" x 3/16", Washable reusable.
This foam filter works surprisingly well for how inexpensive it is. It’s very lightweight and easy to cut into custom shapes or sizes, which makes it useful for way more than just air conditioners. I’ve seen people use it for AC units, space heaters, gaming PCs, air purifiers, and other devices that need simple airflow filtration. One of the best things about it is that it doesn’t noticeably restrict airflow. Since the foam is thin and porous, air still moves through easily while helping catch larger dust, lint, hair, and debris before they get pulled into equipment. That balance between filtration and airflow works really well for applications where thicker filters would choke performance. Installation is extremely simple. You can cut it with regular scissors using an old filter as a template, and the material trims cleanly without crumbling apart. The sizing is generous too, so one sheet can often make multiple replacement filters depending on what you’re using it for. The foam material feels durable enough to wash and reuse several times before needing replacement. It’s flexible, lightweight, and holds up surprisingly well after cleaning. The open-cell foam design also makes it easy to rinse out trapped dust and lint. Fit obviously depends on what you’re cutting it for, but because it’s so customizable, it works well in odd-shaped or hard-to-find filter sizes where official replacements are expensive or unavailable. The only small downside is that it can retain fold lines from packaging initially, but those flatten out over time or once installed. Also, because it’s a thinner foam filter, it’s more for larger particles and airflow protection rather than super fine HEPA-style filtration. Overall though, this is an excellent value filter material that’s versatile, easy to work with, maintains strong airflow, and works great for custom filter replacements and DIY projects. ... show more
Reviewed in the United States on May 25, 2026 by Amazon Customer
    • Needed To Cut Into Air Filters For My BedJet - PERFECT FOR THE JOB!
Color: Clear Size: 15" x 24" x 3/16", Washable reusable.
My BedJet II uses a small rectangle shaped foam filter (5" x 10" x 3/16") that catches dust, lint, etc. at the air inlet end of the machine (think inflow on a vacuum). The filter that comes on the BedJet is a simple thin piece of foam that's hand washable or can be gently cleaned with a vacuum. It's a really cheap filter, it's just a piece of foam that doesn't have a frame or anything like that. (Since this functioned as a light duty filter, a foam filter with rigid frame would have been overkill. I first searched the BedJet company website, didn't see anywhere on the site that the Company sold the filters. (Probably no money in selling 10 cent pieces of foam.) So since it was a pathetically simple filter I decided to fabricate my own. Ordered this foam sheet based on it being 3/16" thick; the BedJet one measured about the same thickness. Warning: Compared to the foam filter on the BedJet, this foam is NOT as dense. Will that matter, i.e., is this foam less protective? I dunno. I'm going to keep an eye on how much dirt, lint, or other debris (e.g., the lint from flannel bed sheets) this filter catches compared to the "heartier" BedJet stock filter. If it's not working as well, I will need to search for another foam/filter solution. The foam arrived, I quickly used the existing filter as a template to form the filter. Tools were a pair of full sized scissors for the long cuts, and manicurist scissors for the small cuts. A few snip snip snips, I was all done. At the moment of truth if fit perfect and the machine works great. With one sheet I can make four filters. Can't beat that price point, $1.50 each total cost. (My labor is free.) So subject to the density issue, if you need to make a homemade filter, if this is the thickness and dimensions you need I highly recommend the product. Between me and my family we have four BedJets. So I'll be ordering more sheets so I don't have to think about making filters for a long time. And at this price point I will buy some extra sheets because one can never have enough filter foam for cutting to shape and size and placing it on or in any device that sucks in air. ... show more
Reviewed in the United States on July 28, 2020 by Michael In San Francisco
    • Perfect replacement, Easy installation, Inexpensive!
Color: Clear Size: 15" x 24" x 3/16", Washable reusable.
Perfect replacement. Very easy installation. Each envelope contained 1 sheet of thin foam, which was more than enough material to replace filters in 2 of my through-the-wall air conditioners. This foam filter is thin; you can actually see through it. For cutting the correct sizes, I used the original filters as templates. With these new filters in place, my air conditioners are now working fine, blowing and cooling Dust Free. The new filters did not impede air flow. ... show more
Reviewed in the United States on July 22, 2025 by Ron Z.
    • They’re Inexpensive and help Collect larger lint and dust
Color: Clear Size: 15" x 24" x 3/16", Washable reusable.
I like these. I know, they’re old school. I use them as a kind of prefilter over the plastic mesh filter in my combo ac/heat unit. They are quite thin, easily installed, no bulk to impact airflow or closing the cover. They cut like a dream for custom fit. As to air quality, well they’re thin and porous so they’re not going to get small dust particles, but getting larger ones, cat hairs, etc., I think they’re worth helping even a little with air quality. ... show more
Reviewed in the United States on September 9, 2024 by Wendy
    • Affordable and makes a window a/c work better!
Color: Clear Size: 15" x 24" x 3/16", Washable reusable.
Work great! Easy to cut to size with scissors.
Reviewed in the United States on April 21, 2026 by Steve R.
    • Very good alternative filter
Color: Clear Size: 15" x 24" x 3/16", Washable reusable.
I needed a lightweight and thin filter for my space heater. The original filter was too old and dirty. It was very easy to cut this filter to size to fit it into the back of the space heater to replace the old one. It is thin enough so that airflow doesn't get impeded while still able to trap small debris and dust. ... show more
Reviewed in the United States on December 31, 2025 by tranxhdr
    • Cheap and works
Color: Clear Size: 15" x 24" x 3/16", Washable reusable.
I bought this to make intake filters for my gaming pc. It worked so well that i also cut one to size and added it to my air purifier for an extra layer and it catches more dust than all of the other 3 filters.
Reviewed in the United States on February 23, 2026 by Jay G
    • Frost King Air Conditioner Filters, 15 in. x24 in. x3/16 in. , Open Cell Foam
Color: Clear Size: 15" x 24" x 3/16", Washable reusable.
Good as advertised, but it kept the memory of the package folding.
Reviewed in the United States on April 26, 2026 by Jo&Ma

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