---
product_id: 663109062
title: "Air Conditioner Covers for Inside 21\"W x 15\"H x 3.5\"D, Windproof and Waterproof 3 Layers Insulation Window Air Conditioner Cover with Aluminum Foil and 2mm Foam, Beige"
brand: "tohonfoo"
price: "694.21 DT"
currency: TND
in_stock: true
reviews_count: 8
category: "Tohonfoo"
url: https://www.desertcart.tn/products/663109062-air-conditioner-covers-for-inside-21w-x-15h-x-3
store_origin: TN
region: Tunisia
---

# Fits 21"W x 15"H x 3.5"D AC units Secure hook-and-loop seal 3-layer insulation shield Air Conditioner Covers for Inside 21"W x 15"H x 3.5"D, Windproof and Waterproof 3 Layers Insulation Window Air Conditioner Cover with Aluminum Foil and 2mm Foam, Beige

**Brand:** tohonfoo
**Price:** 694.21 DT
**Availability:** ✅ In Stock

## Summary

> ❄️ Seal the chill, save the thrill!

## Quick Answers

- **What is this?** Air Conditioner Covers for Inside 21"W x 15"H x 3.5"D, Windproof and Waterproof 3 Layers Insulation Window Air Conditioner Cover with Aluminum Foil and 2mm Foam, Beige by tohonfoo
- **How much does it cost?** 694.21 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/663109062-air-conditioner-covers-for-inside-21w-x-15h-x-3)

## Best For

- tohonfoo enthusiasts

## Why This Product

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

## Key Features

- • **Dual Cord Ports:** Two closable holes keep cables in place and cold air out—no compromises
- • **Effortless Installation:** Pre-sewn, adhesive-backed hook-and-loop straps for a snug, airtight fit
- • **Precision Fit for Your AC:** Designed for 19"-20.5"W x 13"-14.5"H units—measure before you buy!
- • **Lock in Warmth, Slash Bills:** Cut winter energy costs by sealing out cold air and retaining heat
- • **Triple-Layer Thermal Defense:** 600D Oxford fabric + 2mm foam + aluminum foil block drafts like a pro

## Overview

This indoor air conditioner cover features a robust three-layer insulation system combining waterproof Oxford fabric, 2mm thick pearl cotton foam, and reflective aluminum foil to block drafts and reduce heat loss. Sized to fit most window AC units measuring up to 21"W x 15"H x 3.5"D, it installs easily with secure hook-and-loop fasteners and includes dual closable cord holes to prevent cold air infiltration, helping you cut winter heating costs efficiently.

## Description

Product description

Review: Cuts Drafts from Small A/C - This is a great cover for a small air conditioner. Packing it underneath with foam and weatherstrip tape, it already has an aluminum lining that probably helps with cutting down any draft. Has velcro, so while it is not a custom fit, it fits neatly around the a/c and keeps the room warmer. Takes some work, but worth it!
Review: Still too early to comment on function but... - Fits great and was easy to get ready. Looks nice and seems durable for its purpose. We haven't had super cold or windy weather yet but it appears to block the bit of draft there is at this point but we're just finishing an Indian Summer before fall really starts to set in and then winter, which will be the real test, so if there's any problems with this not keeping the cold out this winter, I will update further. I'm in Wisconsin and we can get some brutally cold and ultra windy weather so we'll see what this cover can do...

## Features

- 【Three Layers of Insulation to Block Drafts】Unlike other single-layer covers, the Tohonfoo ac covers for inside uses a three-layer structure: (1) 600D waterproof heavy-duty Oxford fabric, (2) 2mm thickened pearl cotton, and (3) insulated aluminum foil
- 【How to Determine the Right Size】The inner size of the air conditioner cover indoor is 21"W x 15"H x 3.5"D, compatible with most of window air conditioners indoor AC unit measuring 19"-20.5" x 13"-14.5" x 3"(W x H x D). For best fit, please measure your actual AC unit before ordering
- 【Secure Hook-and-Loop Fastener Attachment】Our indoor air conditioner cover comes with pre-sewn and adhesive-backed Hook-and-Loop straps for quick and secure attachment to your window air conditioner, creating an airtight seal that blocks drafts
- 【Cut Winter Energy Costs】This indoor indoor ac cover for window unit effectively blocks cold drafts and minimizes heat transfer during winter months, helping you reduce heating costs. Its insulated design creates a thermal barrier to keep warm air in and cold air out
- 【Two Closable Cord Holes】Unlike most winter window AC cover with only a single cord port, our design features dual closable cable accesses on both sides to effectively prevent cold air infiltration

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D9MF55PZ |
| Best Sellers Rank | #366,769 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #898 in Accessories (Home & Kitchen) |
| Brand | TOHONFOO |
| Brand Name | TOHONFOO |
| Closure Type | Hook & Loop |
| Color | Beige |
| Customer Reviews | 4.4 out of 5 stars 418 Reviews |
| Item Type Name | Air Conditioner Cover Indoor |
| Item Weight | 0.23 Kilograms |
| Manufacturer | TOHONFOO |
| Manufacturer Part Number | HF-ACCI-21-15-3.5-BG |
| Material | Oxford fabric |
| Material Type | Oxford fabric |
| Model Number | HF-ACCI-21-15-3.5-BG |
| Strap Type | Velcro strap |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |

## Product Details

- **Material:** Oxford fabric
- **Color:** Beige
- **Brand:** TOHONFOO
- **Item Weight:** 0.23 Kilograms
- **Water Resistance Level:** Water Resistant

## Images

![Air Conditioner Covers for Inside 21"W x 15"H x 3.5"D, Windproof and Waterproof 3 Layers Insulation Window Air Conditioner Cover with Aluminum Foil and 2mm Foam, Beige - Image 1](https://m.media-amazon.com/images/I/81xdIne70xL.jpg)
![Air Conditioner Covers for Inside 21"W x 15"H x 3.5"D, Windproof and Waterproof 3 Layers Insulation Window Air Conditioner Cover with Aluminum Foil and 2mm Foam, Beige - Image 2](https://m.media-amazon.com/images/I/71V2l2lscTL.jpg)
![Air Conditioner Covers for Inside 21"W x 15"H x 3.5"D, Windproof and Waterproof 3 Layers Insulation Window Air Conditioner Cover with Aluminum Foil and 2mm Foam, Beige - Image 3](https://m.media-amazon.com/images/I/71QNaDvIt5L.jpg)
![Air Conditioner Covers for Inside 21"W x 15"H x 3.5"D, Windproof and Waterproof 3 Layers Insulation Window Air Conditioner Cover with Aluminum Foil and 2mm Foam, Beige - Image 4](https://m.media-amazon.com/images/I/71yUu96NKcL.jpg)
![Air Conditioner Covers for Inside 21"W x 15"H x 3.5"D, Windproof and Waterproof 3 Layers Insulation Window Air Conditioner Cover with Aluminum Foil and 2mm Foam, Beige - Image 5](https://m.media-amazon.com/images/I/71W6abs5gVL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Cuts Drafts from Small A/C
*by M***R on December 30, 2025*

This is a great cover for a small air conditioner. Packing it underneath with foam and weatherstrip tape, it already has an aluminum lining that probably helps with cutting down any draft. Has velcro, so while it is not a custom fit, it fits neatly around the a/c and keeps the room warmer. Takes some work, but worth it!

### ⭐⭐⭐⭐⭐ Still too early to comment on function but...
*by C***Y on September 10, 2025*

Fits great and was easy to get ready. Looks nice and seems durable for its purpose. We haven't had super cold or windy weather yet but it appears to block the bit of draft there is at this point but we're just finishing an Indian Summer before fall really starts to set in and then winter, which will be the real test, so if there's any problems with this not keeping the cold out this winter, I will update further. I'm in Wisconsin and we can get some brutally cold and ultra windy weather so we'll see what this cover can do...

### ⭐⭐⭐⭐ Durable product
*by R***R on November 17, 2025*

It's a quality product to put on the inside part of an air-conditioner you cannot store for the winter.

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-06-09*