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Best vertical air conditioner for sliding windows - Holiday Sale 2025

Last Updated - December 14, 2025

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

PerfectAire

Perfect Aire 10,000 BTU Slider Air Conditioner Window A/C - Casement, 10000, Gray

PerfectAire

$609.00

More Details
Main highlights
- Full function remote control with Follow Me portable thermostat technology for total room coverage
- Front-mounted, tilt-out air filter access for easing cleaning
- Expandable window mounting kit accommodates horizontal sliding or crank-out casement windows with a 15½”/16¼” (min./max.) window width and a 21¼”/39½” (min./max.) window height
- Adjustable temperature settings that range 62°F - 86°F (17°C - 30°C); cools areas between 400-450 sq. ft.
- 3-speeds in both cool and fan modes
$609.00
2

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Durastar

Durastar DRCAC101XNA1 10,000 BTU 115V Casement Air Conditioner - White

Durastar

$539.00

More Details
Main highlights
- Energy Efficiency Ratio (EER): 10.4 with energy saver mode
- Digital Display; Dehumidifier; Sleep Mode; 3 fan speeds; Remote control with 16ft range; Nema 5-15P plug type; CFM: 324, 294, 265
- Designed to fit casement (left to right sliding) windows ONLY, and will not fit windows that slide up and down.
- 10000 BTU vertical window air conditioner engineered for spaces ranging in size from 400 to 450 square feet
$539.00
3
Best Value

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Keystone

Keystone 10,000 BTU Slider Window Air Conditioner and Dehumidifier, 115V Air Conditioner Window Unit for Bedroom, Living Room, and Small-Medium Sized Rooms up to 450 Sq.Ft, 4-Way Air Direction Control

Keystone

$469.99

$499.99
(6% Off)

More Details
Main highlights
- Powerful Cooling on a Budget: Our sliding window air conditioner will give your electric bill a break by using the 'Energy Saver' or 'Sleep' mode; These features automatically program your unit to use less energy
- Maximum Comfort: Featuring 3 cooling modes, 3 fan speeds, 4-way adjustable air louvers and a timer; Aside from cooling, 0.9 pints of moisture from the air is removed every hour with the built-in dehumidification system
- Easy to Use: Designed with a removable chassis so you can install it either in a window or through an exterior wall; An adjustable window kit is included for convenient installation; Minimum window height: 21.3"; Minimum to Maximum window width: 15.5"-16.3"
- Control Your Comfort: 4-way air direction control allows you to direct the air where you need it most for optimal comfort
- Casement Window Air Conditioner: This Keystone vertical air conditioner fits your standard sliding and casement windows; It is rated 10,000 BTUs and best used in a room up to 450 square feet
$469.99
$499.99 (6% Off)
4

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Frigidaire

FHSC102WB1

Frigidaire

$510.00

More Details
Main highlights
- Multi-Speed Fan: Features three different fan speeds, for more cooling flexibility.
$510.00
5

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Midea

Midea 8,000 BTU U Shaped Smart Inverter Window Air Conditioner - Cools 350 Sq Ft, Ultra Quiet with Open Window Flexibility - Alexa/Google Assistant Compatible - 37% Energy Savings, Remote (Updated)

Midea

$278.99

$293.88
(5% Off)

More Details
Main highlights
- ULTRA QUIET - The U-shape design of Midea U Smart Inverter air conditioner uses your window to block noise outside. The highly-efficient inverter system warrants ultra-low noise and vibration, 10x quieter than traditional units with operation as low as 32 dBA. Cooling Watts: 710W, Rated Cooling Amps (AHAM): 8.78.Airflow (CFM) Roomside (hi low): 215/150. Refrigerant: R32.
- SMART CONTROL - Midea U Smart Inverter air conditioner is Wi-Fi enabled and can be controlled from anywhere using the SmartHome app on iOS or Android. You can also use voice commands throughout your house, office, or apartment using Alexa or Google Assistant devices.
- ROBUST INSTALLATION - Install the included quick-snap bracket, set the air conditioner on the bracket, and secure the sidearms. Then you are all done and ready to enjoy. Available for single-hung or double-hung windows with width 22"-36", minimal height at 13.75".
- MORE THAN 37% ENERGY SAVINGS - With the advanced DC Inverter technology, Midea U window air conditioner achieves over 35% energy savings compared to other traditional units. It is the first window AC to obtain the ENERGY STAR Certification.
- FLEXIBLE WINDOW OPENING - The U-shaped design allows your window to open, bringing fresh air into your home and maintaining more of your view when the window air conditioner is installed. When the window is closed, the Anti-Theft Mechanism locks the window for added safety.
$278.99
$293.88 (5% Off)

Best vertical air conditioner for sliding windows - Holiday Sale 2025

Perfect Aire 10,000 BTU Slider Air Conditioner Window A/C - Casement, 10000, Gray

Durastar DRCAC101XNA1 10,000 BTU 115V Casement Air Conditioner - White

Keystone 10,000 BTU Slider Window Air Conditioner and Dehumidifier, 115V Air Conditioner Window Unit for Bedroom, Living Room, and Small-Medium Sized Rooms up to 450 Sq.Ft, 4-Way Air Direction Control

FHSC102WB1

Midea 8,000 BTU U Shaped Smart Inverter Window Air Conditioner - Cools 350 Sq Ft, Ultra Quiet with Open Window Flexibility - Alexa/Google Assistant Compatible - 37% Energy Savings, Remote (Updated)

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