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10 Best Vent Window Air Conditioners - Holiday Sale

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Last Updated - 2025/12/14

Best Choice

01
AC INFINITY

AC Infinity Window Duct Kit, Universal Vent Port for 4” and 6” Inline Fans, Window Vent Kit Fit with HVAC Ducting, Hoses, Duct Fans, Air Conditioner, and Dryer in Homes, Grow Tents, and Grow Rooms

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Main highlights

Fits 4/6” ducting and most 5.1/ 5.9” hoses for use with AC units, dryers, and growing equipment.
Durable frame crafted to block debris from entering your home and handle harsh weather conditions.
Constructed for exhaust and intake purposes to help effectively expel odors and draw in fresh air.
Adjustable rail can extend to adaptively fit vertically or horizontally in windows and sliding doors.
A duct window kit designed to pair with inline fans for ventilation to the outside environment.
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9.8

Exceptional

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02
VIVOSUN

VIVOSUN Window Duct Kit, Portable AC Window Seal Kit, Fit with 4”/6” Ducting & 5.9” Hose for Sliding Window, Adjustable AC Vent Kit for Duct Fans, Air Conditioner, Dryer

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Main highlights

High Compatibility: This kit connects securely with 4" and 6" ducting, as well as 5.9" AC hoses; It supports the removal of stale air and facilitates the influx of fresh air, and works effectively with inline fans, HVAC units, and dryers in grow tents, homes, greenhouses, offices
Great Sealing: Distinctive sliding track design enables this seal kit to fit seamlessly in the window track; Comes with a roll of seal tape for improved sealing and insulation; When used in conjunction with AC units, it efficiently saves energy by blocking hot air from entering and preventing cold air from escaping
Flexible Length Adjustment: Customize the length of this kit by freely combining the plates, ranging from 16.9" to 61"; This flexibility ensures compatibility with slide windows and hung windows of various sizes (NOT suitable for casement window)
Easy to Install & Disassemble: This kit includes Main Plate × 1, Track Plates × 2, Extension Plate × 1, φ5.9" Hose Adapter × 1, φ6" Duct Adapter × 1, φ4" Duct Adapter × 1, Bolts and Wing Nuts × 4, and a roll of 10ft Seal Tape; Just insert and secure the plates on your vertical or horizontal sliding windows, then connect it to the hose
Durable Material: This window vent kit is made of durable PVC material that is resistant to extrusion, aging, and wear; It won't crack or peel off, even after prolonged exposure to the sun or extreme summer heat, ensuring years of dependable use
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9.5

Excellent

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Value for Money

03
Estoder

Universal Portable Air Conditioner Window Vent Kit for 5.1 & 5.9 Inch Exhaust Hose, Upgraded Adjustable AC Window Seal Kit with Coulper & Filter for Sliding Horizontal & Vertical Windows

27% Off Free Shipping
Main highlights

[What You Get]: The portable AC duct kit includes 4 x Window Seal Plates, 4 x Screws, 1 x Universal Coupler with Filter, 1 x User Manual. All accessories are easy to install or disassemble, convenient to store when not in use, and save space.
[Upgraded Thicker Seamless Seal Panels]: The portable air conditioner window vent kit can be embedded perfectly into windows rail to achieve a tight sealing effect. There is no gaps between the plates with the edge of the window, which effectively blocks hot air from entering the room, keeps the room cool, and is more energy-efficient.
[Universal for 5.1 inch & 5.9 inch Exhaust Hose]: The portable ac window kit comes with a 2-in-1 patented coupler, Its internal thread fits 5.1 inch diameter exhaust hose (for clockwise & counterclockwise), and its external thread fits 5.9 inch diameter exhaust hose (only for counterclockwise). Easily connect all your air conditioning hoses hassle-free. (Hose Is NOT included)
[Bird Guard Filter]: The universal coupler has a built-in filter to prevent birds, mice, snakes and garbage enters the air conditioner through the exhaust hose, causing damage to the parts. Most sellers do not have a protective filter in their kits, we add this small accessory for you to better enjoy the convenience brought by our AC window vent kit.
[Adjustable & Durable]: The Max Adjustable Length of 4pcs panels is 155cm/61 inch, to meet the needs of different window heights, fit for horizontal & vertical sliding windows. Made of newly strengthened PVC material, which provides better heat resistance, wear resistance, aging resistance, and durability, ensuring a longer service life.
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9.2

Excellent

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04
HOOMEE

HOOMEE 300CM (118 inch ) Universal Window Seal for Portable Air Conditioner And Tumble Dryer Works with Every Mobile Air-Conditioning, Easy to Install Air Exchange Guards With Zip and Adhesive Fastener

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8.9 Attachment

8.7 worth the money

8.7 materials Quality
Main highlights

Whether for windows that open to the left or windows that open to the right, bottom hung windows or skylights, HOOMEE Window Seal will do the job. Fits window with a maximum perimeter of 300 CM(118").
HOOMEE window seal fill the hose between the window frame and the window itself, helping to maintain a comfortable indoor space.
HOOMEE supports sustainability by minimizing energy use, and help save your cost.
HOOMEE seals around your open window and zips around your hose nozzle, optimizing the efficiency of your air conditioning unit.
Everything you need is included with HOOMEE Window Seal! Attach the adhesive tape to your window frame and the window, secure the window seal, open the zip, and fit your air conditioner hose. Close the zip tightly around the hose.
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9.1

Excellent

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05
Loviga

LOVIGA Portable Air Conditioner Window Kit, Window Vent Kit Seal Kit for Portable Air Conditioner Dryer, 25x102~162cm Length Adjustable 2022 Upgraded 100% Sealing Waterproof Easy to Install

Free Shipping

9.9 materials Quality

9.3 Easy installation

8.9 lasts a long time
Main highlights

️【Tips & Customer Service】1. Clean off the dust at the window frame before applying the adhesive. 2. It is best to leave it for 24 hours after installation before use. LOVIGA offers 1-year warranty and 24-hour customer service.
️【More Reliable Design】This Air Conditioner Window Vent Kit is specially designed to solve the problems of zipper type whose sealing is lacking, zipper bursting and easy to slip off, and complicated installation. Simplify the design and structurer while improving the reliability of the product. At the same time, we use solid materials, double-stitched thread and widen the Velcro and tape to further enhance the adhesion and sealing, truly durable and practical.
️【Easier Installation】Follow the manual or installation video, anyone can set this AC Window Seal Kit up in 5 minutes, no drilling holes, super simple.
️【Better Sealing】Replacing the zipper design with a drawstring to allow fabric better fit ALL SIZE (1~6 Inch)pipe, this newly designed AC Vent Kit has an excellent sealing effect and can achieve a true 0 gap, firmly locking the indoor cool air while also preventing outdoor heat flow from passing in or rain, mosquitoes buds etc. from spilling into the room. Special waterproof TU fabric with heat-insulating whitening process reflects the sun's rays efficiently, fast cooling, real energy-saving.
️【Adjustable Universal Size】LOVIGA Air Conditioner Window Kit Size in (Width)25*102~162cm(Length), length adjustable from 102cm to 162cm (Kindly measure the size of your widndow before placing orders :)), matching all portable air conditioners and air dryers, suitable for home horizontal or vertical sliding windows (single-hung and double-hung).
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9.0

Excellent

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06
Estoder

Portable AC Window Vent Kit with Universal Coupler for 5.1"/5.9" Exhaust Hose, Upgraded Mobile Air Conditioner Window Seal Kit with 4 Adjustable Seal Panels for Horizontal & Vertical Sliding Windows

10% Off Free Shipping
Main highlights

【What You Get】: The portable AC duct kit includes 4 x Window Seal Plates, 4 x Screws, 1 x Universal Hose Adapter with Grid, 1 x Rain Cover, 1 x Sealing Tape, 1 x User Manual. All accessories are easy to install or disassemble, no tool needed, convenient to store when not in use, and save space.
【Upgraded Seamless, Better Sealing Effect】: The portable air conditioner window vent kit can be perfectly embedded in windows rail to achieve a tight sealing effect. There is no gaps between the plate and the edge of the window, effectively blocking the leakage of cold air and the entry of hot air into the room, keeping the room cool and more energy-efficient.
【Universal Coupler for 5.1 inch & 5.9 inch Exhaust Hose】: This 2-in-1 patented coupler has an Internal thread suitable for exhaust hoses with a diameter of 5.1 inches (clockwise and counterclockwise), and an External thread suitable for exhaust hoses with a diameter of 5.9 inches (counterclockwise only). You can easily connect all your air conditioning hoses without hassle. (Hose not included)
【Thickened and Durable Adjustable Panels】: The maximum adjustable length of the 4 window panels is 155cm/61 inches, meeting the needs of different window heights and suitable for most horizontal and vertical sliding Windows. Our AC unit window kit is made of a new reinforced PVC material, featuring superior heat resistance, wear resistance, aging resistance and durability. It has a longer service life and can be reused repeatedly.
【Grid Filter & Rain Cover】: The universal coupling has a built-in grid to prevent birds, mice, snakes and garbage from entering the AC vent hose and damaging your air conditioner components. The rain cover can effectively prevent rain and wind from entering, and let the hot air escape downward, allowing you to better enjoy the convenience of our air conditioner window vent kit.
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8.9

Very Good

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07
Generic

Portable AC Window Vent Kit with 4in1 Coupler&Rain Cover for 5.1"&5.9" Exhaust Hose,Adjustable Length17''to61'',Portable Air Conditioner Window Kit Seal Kit for Sliding Horizontal&Vertical Windows

38% Off Free Shipping
Main highlights

Upgraded Portable AC Window Vent Kit: Our portable AC window vent kit Includes 4pcs upgraded window sealing plates, 4pcs screws, 1pc 4-in-1 adapter&coupler with filter, 1pc rain cover,1pc user manual.Our window seal kit is made of excellent PVC and ABS materials, with a stable structure and long service life,If you have any questions during the usage,please feel free to contact us.
Easy to Install: Our portable AC window seal kit Including user manual, please confirm the size of your windows before installation.The portable AC window kit adopts slide nut design, it equips with one plug and one slip lock,so it can be installed without tools and easy for you to install, disassemble, and reuse.
Adjustable Lenth: Our portable AC window vent kit includes 4pcs upgraded adjustable window sealing plates,Its length adjustment range is 17-61inches,please confirm the size of your windows before purchasing.It fits for various vertical&horizontal sliding windows.
5.1"&5.9" Universal Hose Adapter&Coupler with Filter: The universal hose adapter&coupler adopts an upgraded 4-in-1 design for fiting with 5.1 "&5.9" diameter exhaust hose.The universal hose adapter&coupler comes with a filter,it can avoiding sundries and small animals from entering and damaging the the exhaust hose.We are also equipped with rain cover to avoiding rain and snow from entering the exhaust hose.
2025 New Upgraded Version Design：Our upgraded window sealing plates adopts excellent interlocking slides to achieve tight and seamless assembly, so it significantly improves the sealing performance and helps you save energy.
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8.7

Very Good

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08
gulrear

Gulrear 95"Sliding Door AC Vent Kit with Φ 5.1"Extendable Hose Security Lock & Weather Stripping Universal 5.0/5.9 Inch Coupler for Sliding Glass/Window Portable AC Energy Saving Airtight Seal System

39% Off Free Shipping

8.7 lasts a long time

8.4 Easy to build

8.4 materials Quality
Main highlights

Unleash the Potential of Your Sliding Patio Door with Our Portable AC Exhaust Kit 6.5-inch wide square hole unique design leaves more room on both sides of the hole. Our sliding patio door portable AC Vent kit is a masterpiece crafted from robust and top-notch materials, standing out as the most rational, reliable, and innovative solution on the market.
Universal adapter Connector for portable ac sliding door vent kit is compatible with 90% of hoses on the market, featuring a built-in double-thread design (inboard 5.1" & outer 5.9"). It seamlessly connects with the vast majority of portable air conditioner brands, regardless of whether they have left-hand or right-hand threads. Say goodbye to the hassle of returns due to incompatible sizes. Note: This portable air conditioner patio door kit adapter is an exclusive patent design and is only compatible with Gulrear brand sliding door air conditioner kit
Reasonable Design:gulrear ac sliding door vent kit with latest square vent, combined with the adapter, creates just the right amount of space. portable air conditioner door vent kit allows for efficient air circulation while maintaining the aesthetic and practical aspects of your sliding patio door vent.Whether you're using your portable AC unit during those hot summer days or need proper ventilation, our portable air conditioners sliding door kit is the perfect companion.
Most Comprehensive:The most comprehensive portable ac sliding door vent kit solution on the market! Transform your living area into a breeze-filled oasis with our sliding door air conditioner vent kit —include 6*17" slider pancels up to 95inch,1 x universal AC Hose adapter ,1*Φ 5.1"AC Hose, 1* Security Lock & 2*Weather Stripping,lock-nut and user manual
Easy set-up:Sliding door air conditioner kit was easy to extend to the sliding door/window needs,These glass sliding door window ac side panels are easy to adjust with the slider nuts.The AC Door seal kit can be shortened or lengthened for the desired fit and works with both vertical and horizontal sash windows/sliding doors.simply slot, slide and lock into place!Please check the installation of portable ac door vent kit video on the left or the detailed instruction manual included.
DIY Custom Mix:Great for Tall Silding Windows Not Just Silding Doors.This big portable air conditioner window kit Come with 6 Plates, Total 258cm/105Inch Length, Max Adjustable Length 240cm/95Inch, Be Satisfied With The Needs Of Different Sliding Door/Window Heights.Slotting the Plates Together to The Desired Length of Your Chosen Door - You Don't Need to Use All 6 Plates if it's Not Necessary
Completely sealed and seamless:Efficient Portable AC Operation with Perfect Sealing and Taping 13-foot weatherproof filling tape fills gaps caused by the inner and outer panels, ensuring a tight seal that enhances cooling performance and prevents air leaks. Additionally, our 16.5-foot high-temperature resistant aluminum tape securely fastens and fills the expansion kit to the door frame, allowing for free sliding door operation without tilting or falling.
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8.6

Very Good

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09
TERRALYX

Portable AC Window Vent Kit with Waterproof Cover,AC Window Seal Kit with 5.9" Diameter,Air Conditioner Window Vent Kit for Sliding Horizontal or Vertical Window with 4 Seal Plates

16% Off Free Shipping
Main highlights

【Includes everything you need】-The portable ac window kit includes everything: 4 panels, 59" counterclockwise hose, waterproof cover, sealing tape, and screws. Designed for portable air conditioner window vent kits, this all-in-one ac window kit ensures 15-minute setup—no extra purchases needed. Upgrade your window vent kit today for year-round efficiency!
【All-in-One Coupler】-Protect your ac window vent kit with our upgraded coupler. The fine mesh filter blocks leaves and rubbish,while the weatherproof cover prevents rainwater backflow into your portable ac window kit. Ideal for window kits for ac units, this combo extends AC lifespan by preventing clogs and mold in portable ac window seal systems.
【Adjustable Panels for Universal Compatibility】-This sliding window air conditioner kit adapts to any window type! Adjust the 4-panel ac window seal kit from 17" to 61" for vertical/horizontal sliding windows. Use 2-4 panels to fit casement windows or compact spaces. Whether for apartments, RVs, or offices, our window kit for ac unit guarantees gap-free sealing without drilling.
【59" Expandable Hose with Reinforced Structure】-The portable ac exhaust hose kit includes a 5.9-inch counterclockwise rotation hose (extends to 59"), compatible with portable ac vent kits and most ac exhaust hose window kits. Reinforced with steel wires, this portable ac hose kit resists 160°F heat and deformation. Perfect for window vent kits requiring flexibility, its durable design ensures stable airflow for portable air conditioner window vent kits in tight spaces.
【2025 Upgrade 100% Sealed Panel Design】- Our ac window seal kit features upgraded airtight panels designed for portable air conditioners window kit. It eliminate gaps between sliding windows/walls and your ac vent panel, this window vent kit for portable ac blocks heat backflow. Unlike standard ac window kits, our seamless sealing technology maximizes cooling efficiency, reduces energy waste by 20%, and works seamlessly with casement window ac vent kits or vertical/horizontal installations.
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8.5

Good

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10
Forestchill

Forestchill Portable Air Conditioner Window Vent Kit with Insulation Foam Panels, Adjustable AC Vent Seal Kit with Mesh Guard for 5.9" Diameter Hose, Insulates Heat & Reduces Noise from Outside

13% Off Free Shipping
Main highlights

【Upgraded Window Vent Kit】This upgraded window vent kit not only provides window venting, but also solves the problem of room temperature not cooling down due to hot air leakage during venting, effectively insulating the heat and keeping the room cool and comfortable, saving energy.
【In the Box】Package includes 3 x Portable air conditioner window seal plates with insulated foam panels, 1 x vent guard, and one set of installation kit. Detailed installation instructions are also included.
【Essential Air Vent Mesh Guard】The must-have vent guard can holds the pipe and seals the connection. It also effectively prevent birds and other unwanted visitors from entering through vent hose.
【Adjustable Size】Three window seal plates can be freely adjusted to fit the window from 16.5" to 47", max length 47 inches, compatible with 5.9" diameter vent hose. Suitable for both sliding and hung windows.
【3 Layer Insulation】Our portable AC window vent kit with insulated foam panels is a 3-layer structure, providing better thermal insulation and blocking outside heat, light and noise when compared to thin plastic panels on the market.
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8.3

Good

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