can the weatherseal go between the bottom of the air conditioner and the window sill?)

If there is space then yes. It’s a foam so you can manipulate it into the smallest crevices.

does it absorb moisture?

Never had to experience moisture

What is the maximum temperature rating of this foam?

Sorry, no idea. I use it for insulation. It does not come with temperature ratings listed, but as it's very light, thick sponge rubber I wouldn't think it would withstand very high heat.

It can be hand-washed in mild soapy water' rinsed and air-dried as long as the foam has not gotten crumbly with age.

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Frost King AC43H Air Conditioner Weatherseal Tape, 2-1/4 Inch, 2-1/4" W, 2-1/4" T, 42" L, Dark Gray

Frost King AC43H Air Conditioner Weatherseal Tape, 2-1/4 Inch, 2-1/4" W, 2-1/4" T, 42" L, Dark Gray

Product ID: 261804257

Details

Brand
Thermwell
Colour
Gray
Item thickness
2.25 Inches
Material
Foam
Product dimensions
106.7L x 5.7W

📏2.25" thick foam strip

🌬️42" length for full window coverage

🛡️Seals out air, insects & dust

$38.44

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Description

🛠️ Seal the deal on comfort and efficiency—don’t let your AC’s gaps cost you!

DEFEND YOUR SPACE - Blocks out unwanted air drafts, pesky insects, and dust for a cleaner, more comfortable environment.
COMPACT YET MIGHTY - 42 inches of premium weatherseal tape covers your window AC perimeter with confidence.
DURABLE WEATHERPROOFING - Dark gray foam resists wear and tear, maintaining performance season after season.
EFFORTLESS INSTALLATION - Flexible foam tape easily conforms to window contours—no tools, no hassle.
PRECISION FIT MAXIMUM SEAL - 2.25-inch thick open cell foam ensures a snug, compressible barrier around your AC unit.

The Frost King AC43H Weatherseal Tape is a 2.25-inch thick, 42-inch long open cell foam strip designed specifically for window air conditioners. It provides a resilient, compressible seal that effectively blocks air leaks, insects, and dust, enhancing indoor comfort and energy efficiency. Its dark gray color and flexible foam material ensure durable, easy installation around your AC unit.

Specifications

ASIN	B0000DH4JL
Best Sellers Rank	#121,728 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #885 in Weather Stripping
Brand	Thermwell
Brand Name	Thermwell
Color	Gray
Colour	Gray
Global Trade Identification Number	00077578030401
Included Components	Foam Insulation
Item Dimensions L x W	106.7L x 5.7W centimeters
Item Thickness	2.25 Inches
Item Type Name	Frost King AC43H Air Conditioner Weatherseal Tape, 2-1/4 by 2-1/4 by 42-Inch
Item Weight	0.01 Ounces
Item thickness	2.25 Inches
Manufacturer	Thermwell Products Co., Inc
Manufacturer Part Number	AC43H
Material	Foam
Material Type	Foam
Model Number	AC43H
Number of Items	1
Product dimensions	106.7L x 5.7W centimeters
Recommended Uses For Product	Window
Recommended uses for product	Window
UPC	077578030401
Unit Count	3.5 Feet

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$38.44

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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