Air Lock for Portable Air Conditioner,Window Seal for Mobile Air Conditioning. Max Size 14x60 Inch

In my apartment the windows open outward like a book, and the mesh screen is on the inside. You gotta do what you gotta do. Without this product, the hot air kept blowing back in so that the portable AC wasn't as effective as it should be. I bought two of these and placed them side by side. I velcroed the border of the window, and I also used extra velcro to hold the two fabrics together down the middle of the window. I put the exhaust through one of the zippers and everything else is velcroed tight. I can see and feel the temp going down. Must have it if you have my type of windows and need to use a portable AC. Just don't forget to open the window every time you use the AC.

This was fairly easy to install. I wouldn’t say it’s very durable. But what I didn’t really think about was how bad humidity gets in Florida. Since it’s a thin vinyl like fabric, it definitely doesn’t have the ability to insulate in that it allows heat into the room and the humidity. So what’s the point?

The media could not be loaded. I’m very pleased with this seal. It was so easy for me to install. Thanks for the warranty! I think it will last for quite a while although it faces the south and will get dry from the sun eventually. If it fails you promise to replace so that’s what I like too!! Increase .ml on thickness of material and product would last substantially longer

Giving this four stars because it does the job and I haven't been able to find an alternative.That being said, I need to use a lot of duct tape to make sure it's completely air-tight. There's also no chance of re-using it from year to year, so be prepared to order a new one the next time you need to bust out the AC.My AC has two large tubes to fit in it, and while it works they are heavy and like to try to pull this thing off the velcro, so if you have a similar setup I would suggest securing the top of it with some extra duct tape. If you have a single tube AC unit or one that has smaller tubes, it probably works much better.

I have been searching a long time for a solution. And it takes 10 min. Instead of 2 hrs trying to position original pieces.

Installation was very easy I had it installed in about 15 mintues. I was kind of apprehensive at first but once it was completely installed I was very impressed, material is very light weight but durable. I am not ready for the up in coming hot weather.

Claims to keep the hot air exhaust out. Doesn’t do that . You can feel it come out of the zipper area, where they provide a zip tie, thinking it will hold back air. Avoid this product

It works and the Velcro is very durable. The system managed to seal up an 8” exhaust vent 97% of the way. Small areas of leakage even with cinched down zip ties but from what I could tell rain would have some trouble getting in. I used it for a crypto mining exhaust and the material could handle the heat / weight of the exhaust vent. However the fabric is pretty thin and transparent. A lot of light, and temperature can pass through pretty easily. I think it is a perfect solution in a pinch but long term I would maybe look into a more permanent product