Keystone - 350 Sq. Ft. 8,000 BTU Casement Window Air Conditioner - White

Keystone - 350 Sq. Ft. 8,000 BTU Casement Window Air Conditioner - White
Model: KSTSW08B
Brand: Keystone
(6)
3 stores
2 Products

Product Details

The Keystone 8,000 BTU slider/casement room air conditioner is perfect for cooling your rooms up to 350 sq. ft. Designed specifically for horizontal slider or casement windows this unit is the perfect solution for homes without traditional double-hung windows. 3 fan speeds and a 4-way air direction control means you can quickly cool your room or maintain comfort where needed. The unit also comes with built-in Dehumidification capabilities of removing 0.9 liters per hour. The slide-in/slide-out washable filter removes dust and odors, and with the built-in filter indicator, the unit will let you know when it's time to clean. Sleep mode keeps you cool and comfortable without keeping you awake. A programmable timer assures that you can have the unit cool during the hottest parts of the day and the energy saver mode gives you peace of mind knowing your home is comfortable, without breaking the bank. Keystone 8,000 BTU 115-Volt Casement Window Air Conditioner, White, KSTSW08B

Upgrade your home with the Keystone 8,000 BTU window air conditioner, the best energy-efficient, quiet, and modern AC unit with remote control and timer for easy installation. This window and wall-mounted AC unit is perfect for large room air conditioners up to 350 sq. ft. Experience efficient cooling with 3 fan speeds, 4-way air direction control, and built-in dehumidification capabilities. Additionally, the coldest AC unit features a washable filter for healthy indoor air quality and an energy saver mode for cost-effective cooling solutions. Stay cool and comfortable in your home this summer with the Keystone window air conditioner.

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Last Updated: 2025-11-14 11:19:26

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$399.99
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$479
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Product Specifications

Technical Details

Manufacturer -
Brand Keystone
Item model number KSTSW08B
Color White
Weight -
Height -
Depth -

Additional Product Information

Product Id 3086695
User Reviews and Ratings
3.8 (6 ratings)
3.8 out of 5 stars
UPC 840148724174

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Keystone - 350 Sq. Ft. 8,000 BTU Casement Window Air Conditioner - White
Reviews: 6
app.ratings: (6)
Price:
$399.99 Visit bbuy
3
Keystone 8,000 BTU 350 Sq ft 115-Volt Casement Window Air Conditioner, White, KSTSW08B
Reviews: 37
app.ratings: (37)
Price:
$479 Visit walmart

Top User Reviews and Ratings (10 total reviews)

(5)
Reviewed in the USA on May 21, 2025

[This review was collected as part of a promotion.] I received this Keystone window AC just in time for summer and I'm very impressed with its performance! Finding an AC that works with horizontal sliding windows has been somewhat of a headache, but this one works very well to cool my space down now that the weather is getting hotter here in CA. The 115-volt setup is convenient because I didn't need any special wiring, and the unit runs surprisingly quietly for how powerful it is. It also comes with a remote and digital controls, which makes adjusting the settings super easy from across the room

Anonymous • Review provider: walmart.com
(4)
Reviewed in the USA on May 19, 2025

[This review was collected as part of a promotion.] I haven't gotten to use it enough yet because it's been unseasonably cold and it's heavy. I needed extra help since my windows sit higher and it needed a support bracket on the back. In my opinion, This definitely is not a single person install. However, it's straight forward for usage. The remote is a nice touch so I can change it without having to manually do it on the device. I Like the 4 way directional control so I dont have it blowing directly on me and more where I want it to go. It has an energy saving option which I definitely plan on utilizing. I also like that the filter is washable. For what time I've used it, it was quick to cool the room down. Seems like a nice unit.

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on May 10, 2025

[This review was collected as part of a promotion.] This AC has been a lifesaver in my apartment. It cools my 1-bedroom (about 350 sq ft) super quickly and keeps it comfortable even on the hottest days. The digital controls are easy to use, and I like being able to set a specific temperature instead of just guessing. Install was easy—I had it in the window and sealed with the included side panels and foam in under 30 minutes. It fits snugly and doesn't shake or rattle like cheaper ones I've tried in the past. It's not whisper quiet, but it's not loud either. It's just a steady hum that actually kind of blends into the background after a while. I can still sleep and watch TV just fine. All in all, very happy with this purchase. Solid value for the price, and it does exactly what it promises.

Anonymous • Review provider: walmart.com
(4)
Reviewed in the USA on May 08, 2025

[This review was collected as part of a promotion.] Often Pollo does not need help being cool. I am a natural cool. But when it gets to be 115 degrees Fahrenheit, Pollo needs some help! Apparently, so does the Earth! I hear it is having a global warming problem. Good thing this A/C blows cold air like a midnight bison! While it was not the easiest to install since the instructions did not like to reveal their deepest secrets to Pollo and his friends. This A/C does now work very well. It is quite loud, but that is okay. Pollo needs noise to drown out the wails of his regrets rattling in his head!

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on Apr 29, 2025

[This review was collected as part of a promotion.] This has been absolutely love changing! I have had a portable ac unit in our bedroom since our sc broke about 2 years ago and we have kept it to aid with the house system since it gets so dang hot in Florida! This unit absolutely exceeds my expectations tho! It keeps my entire upstairs much cooler and I know it is giving my whole house ac unit a huge break since I like in 2 stories! I couldn't be happier with this!

Anonymous • Review provider: walmart.com
Showing 1 to 5 of 10 reviews
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