Best Vertical Air Conditioner Window Kits for Sliding Windows 2025

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Choosing the best vertical air conditioner window kit for sliding windows can significantly improve your cooling efficiency and ease of installation. These kits are designed to fit sliding windows, sealing the exhaust hose of portable air conditioners while preventing hot air intrusion. Below is a summary table of the top products carefully selected for this purpose.

Product Brand Compatibility Adjustable Length
Soleus Air Sliding Window Kit Soleus Air Soleus Air Hybrid “Saddle” AC Units 23.5″ – 43″
Portable Air Conditioner Window Kit UNAOIWN 5.9″ AC Exhaust Hose, Vertical & Horizontal Windows 17″ or 27″-65″
Loviga Portable Air Conditioner Window Kit Loviga Portable AC/Dryer, Vertical & Horizontal Sliding Windows 40″ – 64″
Portable Ac Window Vent Kit – ShangFangGu ShangFangGu 5.1″/5.9″ Exhaust Hose, Vertical & Horizontal Windows 16.9″ – 61″
Portable Air conditioner Window Seal Kit – Wafloter Wafloter 5.9” Exhaust Hose, Vertical & Horizontal Sliding Windows Adjustable (Not specified)

Soleus Air Sliding Window Kit For Soleus Air Conditioners

Soleus Air Sliding Window Kit

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The Soleus Air Sliding Window Kit is designed specifically for Soleus Air Hybrid “Saddle” air conditioners. It accommodates sliding windows ranging from 23.5 to 43 inches in height, making it highly customizable. The frame is reinforced aluminum, and installation requires no drilling—simply tighten screws to lock panels in place.

This kit allows users to maintain their window view and natural light thanks to its high-quality plexiglass construction. It fits both single and double-hung horizontal sliding windows, offering convenience while maintaining high cooling efficiency. Foam seals are included for additional insulation around all four panel edges.

UNAOIWN Adjustable Vertical & Horizontal Sliding Window Kit

UNAOIWN Portable Air Conditioner Window Kit

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The UNAOIWN Window Kit features four panels and a 5.9-inch rubber coupler, compatible with most portable AC exhaust hoses. This kit is suitable for both vertical and horizontal sliding windows, offering adjustable lengths from either a 17-inch or 27-inch start point up to 65 inches.

Constructed from durable, anti-aging PVC, it withstands extreme weather and repeated use. Installation is tool-free with a simple sliding and locking plate mechanism. This kit is ideal for home or office settings, combining functionality with easy storage.

Loviga Portable Air Conditioner Window Vent Kit

Loviga Portable AC Window Kit

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The Loviga AC Window Seal Kit fits sliding windows with adjustable length from 40 to 64 inches. The waterproof fabric sleeve uses a drawstring rather than a zipper, providing a 100% sealing effect around exhaust hoses from 1 to 6 inches diameter. This eliminates gaps commonly found in other kits, improving cooling efficiency and preventing outside heat or moisture infiltration.

Fabric is heat-reflective and double-stitched for reinforced durability. This kit is ideal for both vertical and horizontal sliding windows, combining improved sealing reliability with an easy, hassle-free installation process.

ShangFangGu Portable AC Window Vent Kit

ShangFangGu Portable AC Window Vent Kit

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This ShangFangGu window vent kit supports a 5.1-inch or 5.9-inch exhaust hose, designed for both vertical and horizontal sliding windows or sliding doors. Its adjustable length ranges from 16.9 to 61 inches, allowing a customized fit without wall modifications.

Made from weather-resistant PVC, this kit ensures long-term durability. The panels feature a refined sliding groove design for a snug fit, combined with included sealing tape to block hot air intrusion and maximize air conditioning efficiency.

Wafloter Portable Air Conditioner Window Seal Kit

Wafloter Portable AC Window Seal Kit

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The Wafloter AC Window Seal Kit uses a seamless track and groove design to eliminate gaps between adjustable panels. Compatible with 5.9-inch diameter exhaust hoses, this kit improves insulation by fitting tightly in the window track, enhancing cooling efficiency and energy savings.

Constructed from thickened, anti-aging PVC, the panels resist wear and high temperatures from hot air exhaust. The kit suits both vertical and horizontal sliding windows and includes a 5.9-inch coupler for versatile hose connection.

Buying Guide For Vertical Air Conditioner Window Kits

When selecting a window kit for your vertical sliding window air conditioner, several key factors should be considered for optimal performance and ease of use.

Compatibility With Window Type

Ensure the kit supports vertical sliding windows specifically. Many kits are dual-compatible with horizontal sliding windows but verify dimensions and track styles to confirm fit.

Exhaust Hose Diameter

Most kits specify compatibility with standard exhaust hose diameters such as 5.9 or 6 inches. Check your portable AC hose size to ensure a snug fit to prevent leaks.

Adjustability

The window kit should be adjustable in length or height to fit the exact dimensions of your window opening. Adjustable panels offer versatility when repositioning the AC unit or changing rooms.

Material & Durability

Look for weather-resistant, sturdy materials like reinforced aluminum frames or thick PVC panels to withstand heat, moisture, and frequent use season after season.

Sealing Effectiveness

Superior kits provide airtight sealing around the exhaust hose and window to keep hot air outside and cold air inside. Some kits use drawstrings or enhanced Velcro rather than zippers to prevent gaps.

Installation & Storage

Choose kits that are easy to install without tools or drilling and store compactly during off-season. Sliding panels with secure locks help quick setup and removal.

Additional Features

  • Panels made from transparent plexiglass to preserve window view and natural light.
  • Included foam insulation or sealing tape for enhanced energy savings.
  • Versatility to also work with sliding doors for multi-room use.

Considering these points will help you select the best vertical air conditioner window kit, ensuring efficient cooling and ease of use throughout hot seasons.

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