Choosing the best window panel for your portable air conditioner is crucial for effective cooling and energy efficiency. These window kits help channel hot air out while keeping your indoor air cool and comfortable. Below is a comparison of top options available on Amazon, each featuring adjustable sizes, durable materials, and compatibility with standard 5.9-inch exhaust hoses.
| Product | Brand | Key Feature | Adjustable Length |
|---|---|---|---|
| Portable Air Conditioner Window Kit | UNAOIWN | 4 plates with 5.9″ hose coupler and filter | 17 to 65 inches |
| Portable Air Conditioner Window Seal Kit | tBesme | Universal sliding window seal plate, PVC clamping rail | 18 to 54 inches |
| Portable AC Window Vent Kit | JEACENT | Compatible with 5.1″ & 5.9″ ducts, adjustable to 60 inches | 17 to 60 inches |
| Chiligent Double Layer Insulation Foam Panels | Chiligent | 2-layer insulation, noise & heat blocking foam panels | Up to 50 inches |
| Kerykwan Portable Air Conditioner Window Vent Kit | Kerykwan | Includes exhaust hose, weather stripping, and filter | 16.9 to 62.1 inches |
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UNAOIWN Adjustable Window Kit for Portable AC

The UNAOIWN Portable Air Conditioner Window Kit is designed with four adjustable panels suitable for both vertical and horizontal sliding windows. The kit comes with a 5.9-inch diameter duck coupler compatible with clockwise or counterclockwise exhaust hoses. It includes a filter and screws but does not come with the AC unit or hose. Made of durable PVC, it resists aging and extrusion damage, making it usable year after year.
The versatility of its length, adjustable from 17 to 65 inches, allows for a customized fit. Installation is tool-free with a simple slide and lock mechanism, ideal for home or office settings where quick setup and removal are necessary.
tBesme Window Seal Kit for Portable AC

This Universal Window Seal Plate by tBesme features a PVC clamping rail system to fit all sliding window types, both vertical and horizontal. Compatible with 5.9-inch exhaust hoses, it offers an adjustable sealing rail width between 18 and 54 inches. The PVC material ensures a stable and flexible seal that can be adjusted according to window dimensions.
The kit is user-friendly, ensuring easy installation without additional tools. Its innovative design makes it a strong contender for portable AC owners looking for simple and effective sealing solutions for various window formats.
JEACENT Adjustable Window Vent Kit

JEACENT offers a patented window vent kit designed for universal compatibility with 5.1- and 5.9-inch diameter exhaust hoses. The four-panel kit adjusts from 17 to 60 inches, fitting a wide range of window heights. It includes an adapter, foam tape, and screws that facilitate installation on sliding windows placed vertically or horizontally.
Constructed with sturdy, high-temperature resistant PVC, the materials are non-toxic and reusable. This kit emphasizes durability and convenience for repeated seasonal use, providing reliable sealing and energy efficiency.
Chiligent Double Layer Insulation Foam Panels

Chiligent’s double layer foam panels provide a supplementary solution for sealing gaps and improving insulation around window vent kits. The set includes three panels, each up to 50 inches in length, crafted from thick insulation layers that effectively block heat, light, and reduce noise penetration.
These foam panels fit most portable AC window kits on the market, enhancing heat isolation and maintaining indoor comfort. Their flexible and easy-to-cut design allows for tailored installation alongside existing vent panels for extra thermal protection.
Kerykwan Portable AC Window Vent Kit with Exhaust Hose

The Kerykwan Window Vent Kit includes four seal panels, a 5.9-inch exhaust hose, couplers, weather stripping, and screws, offering a comprehensive solution for window sealing with portable ACs. Its adjustable length ranges from 16.9 to 62.1 inches, fitting most vertical and horizontal sliding windows and doors.
The kit features a rail design for easy sliding and locking of panels. The included weather stripping enhances sealing against hot air infiltration, improving energy efficiency while preventing cool air leakage. This kit provides a complete and reinforced sealing approach for portable air conditioning setups.
Buying Guide for Portable Air Conditioner Window Panels
When selecting a window panel for your portable air conditioner, consider the following critical aspects to ensure optimal performance:
Compatibility
- Ensure the window kit matches the diameter of your exhaust hose, commonly 5.9 inches.
- Check if the window panel fits your window type: vertical sliding, horizontal sliding, or double-hung.
Adjustability
- Look for kits with adjustable panel lengths to accommodate a range of window sizes.
- Telescoping or modular designs offer flexibility for both small and large window spans.
Material Quality
- PVC is commonly used for durability, weather resistance, and ease of cleaning.
- Double-layer insulation or foam panels add thermal protection and noise reduction.
Installation Ease
- Choose kits that require minimal tools and offer quick slide-lock mechanisms.
- Some kits include weather stripping or sealing tape for better airtightness.
Additional Features
- Couplers or adapters that are compatible with clockwise or counterclockwise hoses enhance versatility.
- Reusable components for seasonal use help save money in the long term.
- Kits including exhaust hoses might reduce the need for additional purchases.
Considering these factors will help you find the best window panel kit, ensuring an effective seal, improved energy efficiency, and hassle-free installation for your portable air conditioner.