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Sturdy Covers AC Defender - Window Air Conditioner Unit Cover - AC Cover

  • Based on 876 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Nov 26
Order within 9 hours and 58 minutes
Available payment plans shown during checkout

Color: Black


Size: Small


Features

  • PREVENTS DRAFTS: AC cover securely fits the back of window-mounted AC units, helping conserve energy in the winter months by blocking cold drafts from entering the home
  • DURABLE DESIGN: Made of heavy-duty, waterproof 600D polyester, these AC covers are built to withstand snow and rain, helping prolong the lifespan of window units
  • FULL COVERAGE: Measuring 15L x 21W x 16H inches, this AC unit cover is designed to fit over the top, bottom, and sides of standard window units, preventing the accumulation of moisture and debris from outside
  • ADJUSTABLE STRAPS INCLUDED: 2 plastic buckle straps included with this AC winter cover to firmly install the cover and help protect the unit during windy conditions
  • GUARANTEED QUALITY: AC Defender air conditioning covers for window units are backed by a 3-year manufacturers warranty and a 100% satisfaction guarantee

Material: Polyester


Color: Black


Brand: STURDY COVERS EST. 2015


Water Resistance Level: Waterproof


Closure Type: Buckle


Strap Type: Buckle strap


UPC: 653020948632


Product Dimensions: 16 x 21 x 15 inches


Item Weight: 15.2 ounces


Manufacturer: Sturdy Covers


Item model number: WCTB15H


Is Discontinued By Manufacturer: No


Batteries required: No


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Nov 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Does the job!
UPDATE: . Getting ready to install this cover for the third winter season, October thru May. It still works great, keeping the weather out, though the sun has faded the outer material noticeably to a light gray after 2 seasons. Just bought another for a second 8000 BTU window AC unit, which I don't want to have to remove anymore. They seem to get heavier year on year! ;-) The SMALL size (the dimensions of which are typical for all small covers) won't fit quite as snug since that unit is only 18.5 inch W x 12 inch H. The straps will take up the slack, which I'll force to the underside. . ORIGINAL REVIEW: . Just received and fitted the "Small" window AC cover. It is a heavy-duty fabric material, with a smooth waterproof inner lining. The seams are reinforced with an additional fabric strip. While slightly larger and longer than the AC unit, it is an easy install and close to a perfect fit for my unit, covering all five sides. The additional length ensures that the cover "seals" well against the window. The two simple straps with plastic snap-fit buckles fasten the cover tightly onto the AC unit, primarily clamping it at the corners. After the install, I did tuck the lower seams under (third photo) so as to eliminate the "trough" (second photo) that could collect debris, water and snow. I also was able to ensure the bottom tray of the AC unit was dry as it's been off for a few days and the weather has been dry. This AC unit is the type that purposely collects water in the bottom to make it more efficient and there's no drain plug. Any water left in the bottom would be a great source of mold and potential ice in the winter! I can see that this will protect and eliminate drafts through the AC unit, but it's not going to insulate it from the cold as it's not that type of material. The black color will absorb some heat on sunny days though, which will help to warm the cold air inside the unit. Some cold air will convect into the room through the vents as we don't currently plan to fit a cover on the inside. This is the first time we've left the 12,000 BTU window AC in place over the winter (it's getting too much to lift it out every year, clean it and carry it up to the attic - a 2 person job). So, these next few months will tell how well this product works. I will be updating the review in the future. At $21, very pleased with the value so far. ... show more
Reviewed in the United States on September 22, 2020 by Allen D. Reinecke Allen D. Reinecke

  • Good fit
Fit good, durable, lasts season after season.
Reviewed in the United States on February 26, 2024 by Marrie Robins-Bennett

  • Works on my Midea U inverter 8,000 btu ac.
The Midea’s exterior support system allows you to put the cover on by removing and replacing the pins holding the supports. Fits well. Because of the nature of the Midea, allowing you to open the window, and the mounting system, I wanted to keep it in place. This cover looks sturdy and should protect my investment. I first wasn’t sure about the black cover but the cover color should help keep the snow accumulation down. Let’s see how it makes it through this winter. ... show more
Reviewed in the United States on November 29, 2021 by Deutsch

  • GREAT PRODUCT - GREAT PRICE
Great cover. Heavy denier material and plastic lined on the inside to block moisture. Nicely sewn seams. Looks professional. Buy the size that is closest to your outer dimensions to your AC unit. It comes in three sizes to accommodate most any size AC unit. I folded it into the inside of itself to make a nice neat fit and appearance on the outside. The straps that come with it are good, and should secure the cover to your AC unit even in extremely windy areas if you place them on the AC unit properly. Just remember to tighten them after your first storm when the straps get wet. Nylon stretches when it gets wet. Then you should be good to go until you remove them at winters end. If you really wanted to get extreme and insulate you can place some insulation around the unit before placing the cover on it. But, all in all a very nice cover that should last many years. Great product!!! Would I purchase it again? In a heartbeat!!! ... show more
Reviewed in the United States on October 8, 2017 by BILL

  • A near perfect fit
For two same size AC's, I ordered 21W, 15H, 16D to fit 19x14x16 AC's. Never had a more customized cover...no bunched up corners or sagging folds; no need for bungees or duct tape because one size fits all. I have confidence these sturdy covers that snugly covers all sides and bottom will take what Winter has to dish out. Easy to install too. If these have been around for a while, then I was looking in the wrong places. Better late than never. ... show more
Reviewed in the United States on October 28, 2018 by Mark L.

  • Excellent, sturdy material. Would recommend!
Very glad I bought this! It is thick, heavy, well-constructed and keeps the air conditioner clean and protected. It comes with some adjustable straps to tighten it down to the air conditioner. I was concerned because I live in an area with very high winds and I had a terrible kind trying to keep a cover on an air conditioner before it. This one won't blow off and away. It fits my smaller air conditioner perfectly. ... show more
Reviewed in the United States on November 6, 2019 by Kindle Customer

  • Worth every penny!
These are the best window unit covers i have ever found! I live in a cold zone (northern NV) and needed something more substantial than the tarp material that most covers are made from. These were very easy to install, i bought 3 of them. Appreciated the 3 sizes available, too. Would highly recommend. Kudos to Sturdy Covers for making a great product!!! ... show more
Reviewed in the United States on November 1, 2019 by J. Roberts

  • Sturdy material
So far it's stayed on. We'll see what a New England Winter with snow and winds do to it. It is looser than the picture and there are straps to hold it on. Like I said, time will tell. The picture doesn't show the straps which are very sturdy and can be adjusted for a tight fit.
Reviewed in the United States on October 20, 2020 by C Maze

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