---
product_id: 641590890
title: "400CM (157\") Portable AC Window Seal Kit with Universal Coupler Fit for 5.1\"/5.9\" Exhaust Hose, Casement Window Seal Kit for Mobile Air Conditioner, Full Sealing Waterproof AC Window Vent Seal Kit"
brand: "kifiray"
price: "R$929"
currency: BRL
in_stock: true
url: https://www.desertcart.com.br/products/641590890-400cm-157-portable-ac-window-seal-kit-with-universal-coupler
store_origin: BR
region: Brazil
---

# Energy saving Waterproof seal 400cm max fit 400CM (157") Portable AC Window Seal Kit with Universal Coupler Fit for 5.1"/5.9" Exhaust Hose, Casement Window Seal Kit for Mobile Air Conditioner, Full Sealing Waterproof AC Window Vent Seal Kit

**Brand:** kifiray
**Price:** R$929
**Availability:** ✅ In Stock

## Summary

> Stay cool, stay classy! ❄️

## Quick Answers

- **What is this?** 400CM (157") Portable AC Window Seal Kit with Universal Coupler Fit for 5.1"/5.9" Exhaust Hose, Casement Window Seal Kit for Mobile Air Conditioner, Full Sealing Waterproof AC Window Vent Seal Kit by kifiray
- **How much does it cost?** R$929 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/641590890-400cm-157-portable-ac-window-seal-kit-with-universal-coupler)

## Best For

- kifiray enthusiasts

## Why This Product

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

## Key Features

- • **Eco-Friendly Design:** Save energy and your wallet this summer!
- • **Durable & Long-lasting:** Built to withstand the elements and time.
- • **Universal Compatibility:** Fits most windows and hoses effortlessly.
- • **Hassle-Free Installation:** No tools, no fuss—just cool comfort!
- • **Ultimate Cooling Efficiency:** Lock in the chill and kick out the heat!

## Overview

The Kifiray 400CM Portable AC Window Seal Kit is designed to enhance the cooling performance of your portable air conditioner. With a universal 4-in-1 coupler, it fits both 5.1 and 5.9-inch exhaust hoses, ensuring a tight seal that keeps hot air out and cool air in. Made from waterproof and UV-protected TU fabric, this kit is perfect for casement windows and is easy to install without any tools. Enjoy energy savings and a bug-free environment while keeping your space refreshingly cool.

## Description

Easy to Install: No drilling and tools required. 1. Clean the dust on the window frame first, measure the four sides of window. 2. Cut two sets of 4 Velcro strips - one set for the casement, and one set for the window frame, stick the Velcro trips on a specific side of the casement and the window frame, then attach the window seal cover on the Velcro trips. 3. Rotate the coupler onto the hose, and then attach the coupler on seal cloth.

## Features

- Enhance Cooling Performance: This AC Window Seal Kit can tightly locks the vent hose of your portable air conditioner between the window and window frame, effectively expelling the hot air out of the window, firmly lock the indoor cool air while prevent outdoor hot air flowing back, also keep out rain, mosquitoes, bugs etc.
- Universal 4-in-1 Coupler with A Grid: This AC window vent seal kit is equipped with a 4-in-1 coupler, inner buckle fits 5.1 inch vent hose (for clockwise or counterclockwise), the external buckle fits 5.9 Inch exhaust hose (for clockwise or counterclockwise). The grid can prevent small animal or garbage enters the AC vent hose to damage your A/C parts.
- Wide Compatibility: The window vent seal kit fits windows with a maximum perimeter of 400cm/157in (please measure the perimeter of your opening window to ensure a proper fit ). Works great on casement windows that crank outward or inward opening. Suitable for portable air conditioners with 5.1/5.9" exhaust hose.
- Energy Saving In Summer: Our Upgraded A/C Window Vent Seal Kit is specially designed to solve the problems of heat and rain seep, made of special TU fabric, waterproof and UV protection, heat will not seep through, make your room cool down quickly, reduce energy consumption and save your money.
- Long-term Using: The Velcro and window seal cover are great quality with strong adhesion, super easy to attach and the Velcro adhesion both to the window itself and sash to window is very secure. The window seal cover can be removed for washing when it's dirty.
- Easy to Install: No drilling and tools required. 1. Clean the dust on the window frame first, measure the four sides of window. 2. Cut two sets of 4 Velcro strips - one set for the casement, and one set for the window frame, stick the Velcro trips on a specific side of the casement and the window frame, then attach the window seal cover on the Velcro trips. 3. Rotate the coupler onto the hose, and then attach the coupler on seal cloth.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Kifiray |
| Model Number | acventseal4m |
| Colour | White |
| Package Dimensions | 25.3 x 24.51 x 9.3 cm; 358 g |
| Special Features | Portable |
| Item Weight | 358 g |

## Product Details

- **Brand:** Kifiray
- **Special feature:** Portable
- **Colour:** White
- **Power source:** Corded Electric
- **Form factor:** Portable
- **Model name:** portable ac window vent seal kit
- **Control method:** Remote
- **Inverter type:** No Inverter
- **Controller type:** Button Control
- **Efficiency:** Improves Efficiency

## Images

![400CM (157") Portable AC Window Seal Kit with Universal Coupler Fit for 5.1"/5.9" Exhaust Hose, Casement Window Seal Kit for Mobile Air Conditioner, Full Sealing Waterproof AC Window Vent Seal Kit - Image 1](https://m.media-amazon.com/images/I/71Pg5sUJPDL.jpg)
![400CM (157") Portable AC Window Seal Kit with Universal Coupler Fit for 5.1"/5.9" Exhaust Hose, Casement Window Seal Kit for Mobile Air Conditioner, Full Sealing Waterproof AC Window Vent Seal Kit - Image 2](https://m.media-amazon.com/images/I/71CRxpx7A4L.jpg)
![400CM (157") Portable AC Window Seal Kit with Universal Coupler Fit for 5.1"/5.9" Exhaust Hose, Casement Window Seal Kit for Mobile Air Conditioner, Full Sealing Waterproof AC Window Vent Seal Kit - Image 3](https://m.media-amazon.com/images/I/71Gp5lSB1dL.jpg)
![400CM (157") Portable AC Window Seal Kit with Universal Coupler Fit for 5.1"/5.9" Exhaust Hose, Casement Window Seal Kit for Mobile Air Conditioner, Full Sealing Waterproof AC Window Vent Seal Kit - Image 4](https://m.media-amazon.com/images/I/714ZOBcGdPL.jpg)
![400CM (157") Portable AC Window Seal Kit with Universal Coupler Fit for 5.1"/5.9" Exhaust Hose, Casement Window Seal Kit for Mobile Air Conditioner, Full Sealing Waterproof AC Window Vent Seal Kit - Image 5](https://m.media-amazon.com/images/I/71fSlrFTrZL.jpg)

## Available Options

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

---

## 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.com.br/products/641590890-400cm-157-portable-ac-window-seal-kit-with-universal-coupler](https://www.desertcart.com.br/products/641590890-400cm-157-portable-ac-window-seal-kit-with-universal-coupler)

---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-03*