400CM (157)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

Works fine

Worked great with my AC, which I wouldnt have been able to use effectively without it.

We have needed something like this as we have roll out windows and no AC. This is so worth it!!!!!

Had a small issue with the velcrow - clearly on me as I was no expert installer it turns out - their customer service was superb and the installation is now complete and working as anticipated!

I like that it actually works! Once I figured out how to install it properly...it took a couple tries but managed in a about an hour to finally do it right. Watch the video a couple time helped!

I have regular, sliding windows. But the windows are tall. The window kit that came with my portable Frigidaire a/c wasnt tall enough to cover the entire window opening. After looking and looking, I nearly gave up and was about to spend hundreds of dollars to ask a professional to come solve this for me. And then I found this product. Decided to try it given the 5-star reviews and low price, and voila! It worked better than the standard window kit. Its now been a week, and my a/c is working exceptionally well. The cloth is plastic, and is air-tight. Fits nearly any kind of window. Buy this before you lose hope on how to install your window kit for your a/c. Installation time for me took a little longer than most (~30 mins), since the shape of this is not a rectangle, but my window opening was (regular sliding window). I just let the cloth hang a bit where there was extra. Worked out fine and the seal is still holding. Would HIGHLY reocmmend

Looks great and is really well made. It took us a minute to figure out how to tuck the end in to make it look nice but we got it. No (mosquitoes) got in so Im very very happy with that. Also received the it right on time.

Ive been trying to install my portable AC into a casement window for a week now. I have an outward-opening casement which opens vertically from the bottom. Before this, I tried a bunch of stuff to seal the window kit provided with my AC. Even after getting a sheet of plexiglass cut for the window, my AC still was leaking too much heat back into the room, and the plastic from the window installation kit even warped itself. This was my last hope... and luckily it worked like a charm! Im pretty sure I even accidentally ordered one slightly too large for my window, but it still fits and works fine after rolling up some excess material. Installation was super easy albeit a little tedious -- the instructions were kind of bad and the video instructions online were very poorly shot (theres an animated video and a real-life demo, both of which not super helpful), but it was pretty much just a matter of cutting two sets of 4 velcro strips - one set for the casement, and one set for the window frame. Then you velcro the seal, but annoyingly you have to pick a specific side to velcro to the casement vs the window frame, and the only way to tell which side is to follow the edge all the way until it tapers off at the end. It would be really nice if they would color the velcro on one side in order to tell that its the wide side vs the narrow side. I mentioned that I got one which is slightly too big for my window - I rolled up the extra material in the area where I wasnt able to finish getting a velcro seal, and taped it up with some painters tape. They say to use elastic for this purpose, but didnt provide any. Its not perfectly sealed in that area, and I expect I might need to do a better job of rolling it up if theres another big heat wave in the area. Installing with two hoses is just as easy as installing with one -- its just an extra zipper in the seal. I pointed them both downwards. After turning on the AC, there is very little heat being leaked back into the room, which is perfect! Like I mentioned, this is so far the only solution that has worked for my casement window. The material is high enough quality that I dont expect it to degrade significantly in the near future, the zippers move pretty easily around the seal, and overall Im pretty happy with it.

We have had to try to cool our living room using an AC unit in our dining room. With this product, we are able to have the AC unit in our living room. We and our guests are happy to be staying cool during this hot summer. Installing is not as simple as the instructions make it seem. Where the extra material hangs, how to install corners, etc. should be detailed more in the manual.

easy part was the tape stuck around the patio door frame then the difficulty came with placing the Velcro evenly on it I double up extra fabric in left corner and bottom wrong move it was to tight then I put the hose through cut it on all my efforts came down had to retape so barely press the Velcro down on the tape next I put the hose through the zipper which was extremely hard because it doesnt not close around and the zip ties good luck fortunately after some hours eureka it was done not perfect but doable