--- product_id: 261804257 title: "Frost King AC43H Air Conditioner Weatherseal Tape, 2-1/4 Inch, 2-1/4\" W, 2-1/4\" T, 42\" L, Dark Gray" brand: "thermwell" price: "€ 45.49" currency: EUR in_stock: true category: "Thermwell" url: https://www.desertcart.hr/products/261804257-frost-king-ac43h-air-conditioner-weatherseal-tape-2-1-4 store_origin: HR region: Croatia --- # 2.25" thick foam strip 42" length for full window coverage Seals out air, insects & dust Frost King AC43H Air Conditioner Weatherseal Tape, 2-1/4 Inch, 2-1/4" W, 2-1/4" T, 42" L, Dark Gray **Brand:** thermwell **Price:** € 45.49 **Availability:** ✅ In Stock ## Summary > 🛠️ Seal the deal on comfort and efficiency—don’t let your AC’s gaps cost you! ## Quick Answers - **What is this?** Frost King AC43H Air Conditioner Weatherseal Tape, 2-1/4 Inch, 2-1/4" W, 2-1/4" T, 42" L, Dark Gray by thermwell - **How much does it cost?** € 45.49 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/261804257-frost-king-ac43h-air-conditioner-weatherseal-tape-2-1-4) ## Best For - thermwell enthusiasts ## Why This Product - Trusted thermwell brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **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. ## Overview 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. ## Description 2-1/4" x 2-1/4" x 42", Dark Gray, Open Cell Foam Tape, For Weather-Stripping Around Window Air Conditioners, A Resilient, Compressible Strip For Sealing Out Air, Insects & Dust.Do not use it on paint or wallpaper. ## Features - For Weather-Stripping Around Window Air Conditioners - Resilient, Compressible Strip For Sealing Out Air, Insects & Dust - Open Cell Foam Tape ## Technical Specifications | Specification | Value | |---------------|-------| | 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 | ## Product Details - **Brand:** Thermwell - **Colour:** Gray - **Item thickness:** 2.25 Inches - **Material:** Foam - **Product dimensions:** 106.7L x 5.7W centimeters ## Images ![Frost King AC43H Air Conditioner Weatherseal Tape, 2-1/4 Inch, 2-1/4" W, 2-1/4" T, 42" L, Dark Gray - Image 1](https://m.media-amazon.com/images/I/81dtEN7daQL.jpg) ![Frost King AC43H Air Conditioner Weatherseal Tape, 2-1/4 Inch, 2-1/4" W, 2-1/4" T, 42" L, Dark Gray - Image 2](https://m.media-amazon.com/images/I/91XYNoEraKL.jpg) ![Frost King AC43H Air Conditioner Weatherseal Tape, 2-1/4 Inch, 2-1/4" W, 2-1/4" T, 42" L, Dark Gray - Image 3](https://m.media-amazon.com/images/I/81MfpSaOC9L.jpg) ![Frost King AC43H Air Conditioner Weatherseal Tape, 2-1/4 Inch, 2-1/4" W, 2-1/4" T, 42" L, Dark Gray - Image 4](https://m.media-amazon.com/images/I/81VaoALvX-L.jpg) ## Questions & Answers **Q: can the weatherseal go between the bottom of the air conditioner and the window sill?)** A: If there is space then yes. It’s a foam so you can manipulate it into the smallest crevices. **Q: does it absorb moisture?** A: Never had to experience moisture **Q: What is the maximum temperature rating of this foam?** A: 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. **Q: Is it washable?** A: It can be hand-washed in mild soapy water' rinsed and air-dried as long as the foam has not gotten crumbly with age. ## Frequently Bought Together - THERMWELL Frost King AC43H Air Conditioner Weatherseal Tape, 2-1/4 by 2-1/4 by 42-Inch - Frigidaire 6,000 BTU Window Air Conditioner with Remote Control, Cools Up to 250 Sq. Ft., Quiet Operation, Eco Mode, 3 Fan Speeds, Auto Restart, White - Breeze Stop Surround Insulation Side Panels White for Window AC Unit Indoor Air Conditioner Cover for Winter and Summer --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/261804257-frost-king-ac43h-air-conditioner-weatherseal-tape-2-1-4](https://www.desertcart.hr/products/261804257-frost-king-ac43h-air-conditioner-weatherseal-tape-2-1-4) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-28*