Best Portable AC Unit Window Seal Horizontal in 2025
Updated on June 2025
#1
Recommended
Free Shipping
- Includes four plates and a 5.9-inch diameter duck coupler; compatible with portable air conditioners that use a 5.9-inch vent hose; does not include AC hose or unit.
- Constructed from high-quality PVC for durability; resistant to extrusion and aging; designed for easy installation and removal; suitable for home or office use.
- Fits most vertical and horizontal sliding windows; customizable combinations with 2, 3, or 4 panels to match window size; tool-free setup with adjustable lengths from 17 to 65 inches.
- Features a sealing strip to fill gaps between the fixed and adjustable plates; helps maintain a cool indoor environment by blocking hot air and improving energy efficiency; includes a 3.5M sealing strip for effective insulation.
- Provides 24/7 customer support to address any inquiries or issues; ensures customer satisfaction with responsive service.
Read More
- Includes four plates and a 5.9-inch diameter duck coupler; compatible with portable air conditioners that use a 5.9-inch vent hose; does not include AC hose or unit.
- Constructed from high-quality PVC for durability; resistant to extrusion and aging; designed for easy installation and removal; suitable for home or office use.
Read More
#2
Value for Money
Free Shipping
- Compatible with 5" Air Conditioner Hose: Includes 4 plates, 5 diameter coupler, sealing tape, and screws. Fits select LG, Whynter, and Haier models; measure size before purchase.
- Quick-Adjust Sliding Track: Features an easy-to-use rail design for sliding seal plates and fast locking; no tools required and length adjustments take only 5 seconds. Check length range in product images.
- Versatile Installation: Suitable for most vertical and horizontal sliding windows; can be configured with 2, 3, or 4 plates depending on window size for flexible use.
- Effective Sealing: Plates fit securely in window tracks to prevent air leakage, ensuring efficient cooling and reduced energy costs by blocking hot air.
- User-Friendly Installation and Storage: Constructed from durable PVC, resistant to wear; designed for easy installation, disassembly, and compact storage when not in use.
Read More
- Compatible with 5" Air Conditioner Hose: Includes 4 plates, 5 diameter coupler, sealing tape, and screws. Fits select LG, Whynter, and Haier models; measure size before purchase.
- Quick-Adjust Sliding Track: Features an easy-to-use rail design for sliding seal plates and fast locking; no tools required and length adjustments take only 5 seconds. Check length range in product images.
Read More
#3
Free Shipping
- Seamless slide rail design eliminates gaps between plates, ensuring alignment and effective sealing for energy efficiency.
- Includes a 5.9-inch coupler compatible with 5.9/6.0-inch diameter exhaust hoses.
- Constructed from thick PVC material for durability and resistance to wear, heat, and aging.
- Compatible with most vertical and horizontal sliding windows; adjustable from 17” to 53” with flexible plate combinations.
- Simple installation process requires no tools; includes instructions for quick setup and a grid to keep debris out of the AC vent hose.
- Package contains outer plates, inner plates, a coupler, sealing tape, a grid, screws, and a user manual; window size measurement recommended prior to purchase.
Read More
- Seamless slide rail design eliminates gaps between plates, ensuring alignment and effective sealing for energy efficiency.
- Includes a 5.9-inch coupler compatible with 5.9/6.0-inch diameter exhaust hoses.
- Constructed from thick PVC material for durability and resistance to wear, heat, and aging.
- Compatible with most vertical and horizontal sliding windows; adjustable from 17” to 53” with flexible plate combinations.
Read More
#4
Free Shipping
- Adjustable size of 10x24 to 36 inches, compatible with all portable air conditioners and dryers, designed for horizontal or vertical sliding windows.
- Features a drawstring design for better sealing around exhaust hoses, preventing indoor cool air loss and blocking outdoor heat, rain, and insects; made from special waterproof fabric with heat-insulating properties.
- Enhanced design addresses common issues with zipper types by simplifying installation and using more durable materials and stronger sealing methods.
- Installation is straightforward: open window, apply adhesive tape, position seal, insert exhaust pipe, and secure; requires no drilling.
- Maintenance tips include cleaning the window frame before application and allowing 24 hours before first use, backed by a 1-year warranty and 24/7 customer support.
Read More
- Adjustable size of 10x24 to 36 inches, compatible with all portable air conditioners and dryers, designed for horizontal or vertical sliding windows.
- Features a drawstring design for better sealing around exhaust hoses, preventing indoor cool air loss and blocking outdoor heat, rain, and insects; made from special waterproof fabric with heat-insulating properties.
Read More
#5
6% Off
Free Shipping
- Check product size and model before purchasing to avoid compatibility issues.
- The Portable AC exhaust hose features an anti-clockwise thread; confirm it matches your AC specifications.
- Hose diameter is 5.9 inches (15 cm), with an adjustable length between 16.9 and 62.1 inches.
- Includes a complete window kit with seal plates, exhaust hose, and sealing tape for installation.
- Designed for easy installation with weather stripping for enhanced sealing and energy efficiency.
- Constructed from PVC, ABS, and PP for durability and long-term use.
Read More
- Check product size and model before purchasing to avoid compatibility issues.
- The Portable AC exhaust hose features an anti-clockwise thread; confirm it matches your AC specifications.
- Hose diameter is 5.9 inches (15 cm), with an adjustable length between 16.9 and 62.1 inches.
- Includes a complete window kit with seal plates, exhaust hose, and sealing tape for installation.
Read More
#6
14% Off
Free Shipping
- Portable air conditioner window vent kit designed for easy installation.
- Features an adjustable window seal to fit various window sizes.
- Includes a 5.9-inch diameter exhaust hose for efficient airflow.
- The hose length is 59 inches, providing flexibility in positioning the A/C unit.
- Compatible with sliding, horizontal, or vertical windows for universal application.
- Constructed for use with air conditioning units to enhance cooling efficiency.
Read More
- Portable air conditioner window vent kit designed for easy installation.
- Features an adjustable window seal to fit various window sizes.
- Includes a 5.9-inch diameter exhaust hose for efficient airflow.
- The hose length is 59 inches, providing flexibility in positioning the A/C unit.
- Compatible with sliding, horizontal, or vertical windows for universal application.
Read More
#7
12% Off
Free Shipping
- Universal design fits all portable air conditioners with a 5.9" diameter hose.
- PVC clamping rail adapts to sliding windows, allowing for vertical and horizontal installation.
- Telescoping sealing rails adjust from 18" to 48" for flexible installation options.
- Made from durable and lightweight PVC, easy to attach, remove, and store.
- Prevents hot air entry, enhancing the efficiency of mobile air conditioning systems.
Read More
- Universal design fits all portable air conditioners with a 5.9" diameter hose.
- PVC clamping rail adapts to sliding windows, allowing for vertical and horizontal installation.
- Telescoping sealing rails adjust from 18" to 48" for flexible installation options.
- Made from durable and lightweight PVC, easy to attach, remove, and store.
- Prevents hot air entry, enhancing the efficiency of mobile air conditioning systems.
#8
17% Off
Free Shipping
- Seamless slot design eliminates gaps between panels for a perfect fit on window tracks, improving insulation and energy efficiency.
- 2-in-1 coupler accommodates both 5.1-inch and 5.9-inch vent hoses, compatible with various installations.
- Constructed from thickened PVC material for enhanced durability and resistance to wear and aging under high temperatures.
- Designed for wide compatibility, the kit adjusts from 17” to 46” to fit most vertical and horizontal sliding windows.
- Tool-free installation allows for quick setup at home or in the office, with included instructions and protective grid to keep debris out of the vent.
- Package includes all necessary components, including outer and inner plates, hose adapter, sealing materials, and user manual.
Read More
- Seamless slot design eliminates gaps between panels for a perfect fit on window tracks, improving insulation and energy efficiency.
- 2-in-1 coupler accommodates both 5.1-inch and 5.9-inch vent hoses, compatible with various installations.
- Constructed from thickened PVC material for enhanced durability and resistance to wear and aging under high temperatures.
Read More
#9
Free Shipping
- Fits most portable AC units with a 5.9-inch exhaust hose, adjustable for various window heights between 17 and 48 inches.
- Constructed from high-quality PVC, resistant to aging and deformation for long-lasting use; easy to install and remove, suitable for home or office.
- Simple installation with adjustable panels; compatible with both vertical and horizontal windows for a customized fit.
- Provides a tight seal in window rails to prevent hot air entry, maintaining a cool room temperature and reducing energy costs.
- Designed for use with both vertical and horizontal sliding windows, adaptable with combination panel setups for various sizes.
Read More
- Fits most portable AC units with a 5.9-inch exhaust hose, adjustable for various window heights between 17 and 48 inches.
- Constructed from high-quality PVC, resistant to aging and deformation for long-lasting use; easy to install and remove, suitable for home or office.
- Simple installation with adjustable panels; compatible with both vertical and horizontal windows for a customized fit.
Read More
#10
Free Shipping
- Compatible with all AC units with a 5.9" diameter, featuring an easy-to-use rail design for smooth adjustments and a lock system.
- Constructed from durable PVC and ABS materials, this window seal kit is reusable and designed for long-term use, with easy storage options when not needed.
- Offers improved energy efficiency by effectively sealing windows to keep cool air in and prevent hot air infiltration, potentially reducing energy costs.
- Designed for simple installation and removal without additional tools, allowing for quick setup and restoration of your window.
- Includes a comprehensive package with two fixing plates, two adjustable plates, a coupler filter, an exhaust hose adapter, a 59-inch exhaust hose, sealing tape, and screws, ensuring all components are available for installation.
Read More
- Compatible with all AC units with a 5.9" diameter, featuring an easy-to-use rail design for smooth adjustments and a lock system.
- Constructed from durable PVC and ABS materials, this window seal kit is reusable and designed for long-term use, with easy storage options when not needed.
- Offers improved energy efficiency by effectively sealing windows to keep cool air in and prevent hot air infiltration, potentially reducing energy costs.
Read More
Similar Products
Ac Hose Extension Midea
See All
Ac Hose Connector Danby
See All
Split Ac Remote Holder
See All
