Choosing the right window vent air conditioner kit is essential for an efficient and secure fit of your portable air conditioner exhaust hose. This guide highlights top-rated kits designed to seal your horizontal or vertical sliding windows, prevent hot air infiltration, and ensure energy savings. Below is a comparison table of the best options available.
| Product | Brand | Adjustable Length | Compatible Hose Diameter | Window Type Compatible |
|---|---|---|---|---|
| Loviga Portable Air Conditioner Window Kit | Loviga | 40 to 64 inches | 1 to 6 inches exhaust hose | Horizontal or vertical sliding |
| Kxuhivc Portable Air Conditioner Window Vent Kit | Kxuhivc | N/A (hose length options) | 5.9 inches | Horizontal or vertical sliding |
| Portable Air Conditioner Window Vent Kit with 59″ Hose | Aukney | 16.9 to 62.1 inches | 5.9 inches | Horizontal and vertical sliding |
| UNAOIWN Adjustable Sliding Window Kit Plate | UNAOIWN | 17 to 65 inches | 5.9 inches | Horizontal and vertical sliding |
| Hyphen-X Portable Air Conditioner Window Vent Kit | Hyphen-X | Adjustable (unspecified range) | 5.9 inches | Horizontal and vertical sliding |
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Loviga Portable Air Conditioner Window Kit

This Loviga Portable AC Window Kit offers an adjustable size of 10 inches width by 40 to 64 inches length, suitable for both horizontal and vertical sliding windows. It features a drawstring sealing fabric that perfectly fits exhaust hoses between 1 and 6 inches diameter, eliminating gaps for true airtight sealing. Its waterproof TU fabric with heat-insulating whitening helps reflect sunlight, improving air conditioning efficiency and energy savings. The upgraded design removes zipper vulnerabilities, employing widened Velcro and tape with double-stitched threads to ensure durability and firm installation. This vent kit helps block outdoor heat, rain, mosquitoes, and bugs effectively.
Kxuhivc Portable Air Conditioner Window Vent Kit

The Kxuhivc Adjustable Window Seal comes with an exhaust hose of 5.9 inches diameter, compatible with most portable AC units. Offered in hose lengths of 59 and 78.7 inches, this kit fits both horizontal and vertical sliding windows. The vent hose features an anti-clockwise thread direction, which users should confirm matches their portable AC for a proper fit. Its simple design focuses on functionality, ensuring easy installation and effective air venting for maintaining indoor air quality and temperature.
Aukney Portable Air Conditioner Window Vent Kit with 59″ Hose

The Aukney Window Vent Kit is a universal solution for all portable air conditioners with a 5.9-inch diameter exhaust hose. Its adjustable seal panel extends from 16.9 to 62.1 inches length, fitting vertical and horizontal sliding windows and doors with ease. Made from durable PVC and premium ABS coupler, this kit is reusable and resistant to aging and compression. Its design offers a tight fit in window rails, enhancing energy efficiency by isolating hot outdoor air and maintaining cool indoor temperatures.
UNAOIWN Adjustable Sliding Window Kit Plate for AC

The UNAOIWN Window Kit includes four PVC plates, a 5.9-inch diameter coupler, a filter, and screw accessories (hose and AC not included). Designed for clockwise or counterclockwise exhaust hoses, it is compatible with most portable air conditioners on the market. The kit adjusts between 17 and 65 inches in length, allowing versatile combinations of 2- to 4-board configurations for different window sizes. Installation or removal requires no tools, making it suitable for home or office usage with a durable, anti-aging build.
Hyphen-X Portable Air Conditioner Window Vent Kit

The Hyphen-X Vent Kit caters to exhaust hoses with a uniform 5.9-inch diameter, ensuring compatibility with many portable AC models. It features a seamless card slot design for enhanced fitting in sliding door or window tracks, supplemented by sealing tape for superior insulation. Additional inclusions like a bird guard and rain cover protect indoor environments from rain, debris, and birds. Constructed from robust PVC, the plates resist aging, extrusion, and sun damage for reliable, long-term performance in extreme heat and sun exposure.
Buying Guide for Window Vent Air Conditioner Kits
When selecting a window vent air conditioner kit, consider these essential factors to ensure optimal fit and performance:
- Compatibility: Verify the exhaust hose diameter of your portable AC — most common sizes are 5.9 inches. Some kits feature adjustable fittings for hoses ranging from 1 to 6 inches.
- Window Type: Kits are designed specifically for horizontal or vertical sliding windows. Confirm compatibility with your window style before purchase.
- Adjustability: Look for kits that offer adjustable lengths or sliding panels to fit different window sizes and configurations precisely.
- Material Quality: Durable, weather-resistant materials such as thick PVC and reinforced fabric ensure long-lasting sealing, resisting heat, aging, and wear.
- Sealing Effectiveness: Effective sealing prevents indoor cool air from escaping and keeps outdoor hot air, rain, insects, and debris out. Features like drawstrings, Velcro, or fastening tapes can improve sealing.
- Ease of Installation: Choose kits that require minimal or no tools for installation and allow easy removal and storage after the cooling season.
- Additional Features: Some kits include bird guards, rain covers, or filters that increase protection and improve airflow quality.
- Durability: Consider kits with double stitching, reinforced edges, and heat-reflective fabrics for enhanced longevity and performance.
By weighing these factors against your specific window type and portable air conditioner model, you can select a vent kit that maximizes cooling efficiency and provides lasting convenience.