---
product_id: 22066029
title: "Frost King AC42H Air Conditioner Weatherseal Tape, 1-1/4 by 1-1/4 by 42-Inch,Black"
brand: "frost king"
price: "$25.34"
currency: USD
in_stock: true
reviews_count: 13
category: "Frost King"
url: https://www.desertcart.us/products/22066029-frost-king-ac42h-air-conditioner-weatherseal-tape-1-1-4
store_origin: US
region: United States of America
---

# 42-inch length for full AC coverage Open cell foam blocks air, dust & insects 1.25-inch thick resilient foam seal Frost King AC42H Air Conditioner Weatherseal Tape, 1-1/4 by 1-1/4 by 42-Inch,Black

**Brand:** frost king
**Price:** $25.34
**Availability:** ✅ In Stock

## Summary

> 🖤 Seal the deal: Keep your cool and block the chaos with Frost King!

## Quick Answers

- **What is this?** Frost King AC42H Air Conditioner Weatherseal Tape, 1-1/4 by 1-1/4 by 42-Inch,Black by frost king
- **How much does it cost?** $25.34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/22066029-frost-king-ac42h-air-conditioner-weatherseal-tape-1-1-4)

## Best For

- frost king enthusiasts

## Why This Product

- Trusted frost king brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Fit Seal:** Perfect 1-1/4" square profile ensures airtight window AC insulation
- • **Easy DIY Installation:** Flexible tape applies quickly around window units—no tools, no hassle
- • **Durable & Compressible:** Resilient polyurethane foam maintains shape and blocks drafts season after season
- • **Value-Packed Longevity:** High-quality material resists deterioration, delivering lasting comfort and savings
- • **Multi-Barrier Protection:** Effectively seals out air leaks, dust, and pesky insects for a cleaner, cooler space

## Overview

Frost King AC42H Weatherseal Tape is a 42-inch long, 1.25-inch thick open cell polyurethane foam strip designed for window air conditioner weather-stripping. It provides a durable, compressible barrier that effectively seals out air, dust, and insects, enhancing energy efficiency and indoor comfort. Easy to install and built to last, this tape is a smart upgrade for any window AC setup.

## Description

1-1/4" x 1-1/4" x 42", Gray, Open Cell Foam Tape, For Weather-Stripping Around Window Air Conditioners, A Resilient, Compressible Strip For Sealing Out Air, Insects & Dust.

Review: Works as expected - This work as expected and don't deteriorate over time. Buying them on desertcart is it cheaper option as compared to the hardware store. Arrived promptly, no complaints.
Review: Michigander DIYer - Very durable, quality, thick insulation foam seal that stays put and looks great. It is definitely a 1-1/4" inch square piece and is 42" long. Very easy and quick to install around an ac unit that definitely keeps the hot air out and cold air in! Definitely consider using this--great value for the money!

## 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 | B000117C40 |
| Best Sellers Rank | #120,797 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #555 in Weather Stripping |
| Brand | Frost King |
| Brand Name | Frost King |
| Color | Black |
| Customer Reviews | 4.4 out of 5 stars 1,959 Reviews |
| Global Trade Identification Number | 00077578030418 |
| Included Components | Weather stripping |
| Item Dimensions L x W | 42"L x 1.25"W |
| Item Thickness | 1.25 Inches |
| Item Type Name | Frost King AC42H Air Conditioner Weatherseal Tape, 1-1/4 by 1-1/4 by 42-Inch,Black |
| Item Weight | 0.04 Pounds |
| Manufacturer | Thermwell Products Co., Inc |
| Manufacturer Part Number | AC42H |
| Material | Polyurethane (PU) |
| Material Type | Polyurethane (PU) |
| Model Number | AC42H |
| Number of Items | 1 |
| Product Dimensions | 42"L x 1.25"W |
| Recommended Uses For Product | Window |
| UPC | 077578030418 |
| Unit Count | 3.5 Feet |

## Product Details

- **Brand:** Frost King
- **Color:** Black
- **Item Thickness:** 1.25 Inches
- **Material:** Polyurethane (PU)
- **Product Dimensions:** 42"L x 1.25"W

## Images

![Frost King AC42H Air Conditioner Weatherseal Tape, 1-1/4 by 1-1/4 by 42-Inch,Black - Image 1](https://m.media-amazon.com/images/I/81VkryKbY2L.jpg)
![Frost King AC42H Air Conditioner Weatherseal Tape, 1-1/4 by 1-1/4 by 42-Inch,Black - Image 2](https://m.media-amazon.com/images/I/71JA3IWjiXL.jpg)
![Frost King AC42H Air Conditioner Weatherseal Tape, 1-1/4 by 1-1/4 by 42-Inch,Black - Image 3](https://m.media-amazon.com/images/I/71QAeam1A8L.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works as expected
*by A***E on November 30, 2025*

This work as expected and don't deteriorate over time. Buying them on Amazon is it cheaper option as compared to the hardware store. Arrived promptly, no complaints.

### ⭐⭐⭐⭐⭐ Michigander DIYer
*by P***T on May 24, 2026*

Very durable, quality, thick insulation foam seal that stays put and looks great. It is definitely a 1-1/4" inch square piece and is 42" long. Very easy and quick to install around an ac unit that definitely keeps the hot air out and cold air in! Definitely consider using this--great value for the money!

### ⭐⭐⭐⭐ Good for city life
*by T***A on May 31, 2026*

I used it for my door and window it keeps the cold out but u have to provide the glue and mice and rats love it when you live in the backwoods

## Frequently Bought Together

- Frost King AC42H Air Conditioner Weatherseal Tape, 1-1/4 by 1-1/4 by 42-Inch,Black
- THERMWELL Frost King AC43H Air Conditioner Weatherseal Tape, 2-1/4 by 2-1/4 by 42-Inch
- XFasten Transparent Window Weather Sealing Tape, 2-Inch x 30 Yards (50.8mm x 27.43m), Clear Window Draft Isolation Sealing Film Tape, No Residue

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-12*