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

We have windows that crank outward with a screen inside, so getting our portable a/cs to be ventable had been a pain in the neck. These, while a tad challenging to ensure we understood the instructions at first, went up easily and work very well. Note that the material means no sound barriers to the outside, so if you live in a noisy place, youll hear everything as though the windows are open (which they are!), but its well worth it.

Works fine

Highly recommend the suppliers are super nice and easy to work with even offer help if needed. Comes with everything you need super easy to figure out.

haven `t used yet but appears to be good product

I was having problems finding one of these for a door i need to use. I have a entertainment room near a back door. i convinced myself that the 400cm would work on it even though this is specifically for a window. It works great. Just make sure that the one you order measures out to the same size you order. In my case the top, bottom and one side measured to 400cm and that is what i got. For 19 bucks it really fits good im glad i got it. If i had bought one for a door i dont think it could have fit much better. Even better if you have a flip over ball and glide type security lock like i do. It keeps the door locked but allows the door to be open about 2 inches. Works great , I like it.

I bought this as a way to vent a laser cutter exhaust outside. My casement windows open outward, so had to think a bit when installing. Initially I had the 3 vent a few inches from the bottom of the window with the zippers holding it up. It was below freezing outside. This caused the double sided tape to pull off the frame. I added more tape and moved the vent pipe lower so less pull. Works great now. I was able to install in such a manner that I can even put the screen back in the window and use if I unzip the seal.

Ordered this because I have Anderson casement windows and portable AC. Works great and does the job, so far.

Things I recommend is: - Good scissors - Measuring tape Before buying this product definitely measure you window and pick the size that matches your need. Just convert inches into centimeters. Once you do buy this product the vendor will send you couple videos showing installation and they were helpful. Having measure taping is handy so you can measure the pieces you need to cut and makes the installation easier and less likely to waste extra velcro. Keep in mind this is not perfect insulation and honestly there is no such thing but this window sealer will keep the hot air out and bugs too. After installing I just place my AC exhaust hose and use the reusable twist tie that came with this kit and lock the hose in place. Turn on the AC and my place cools down and keeps the hot air out.

This is my second time purchasing from this company and they do not disappoint. Just make sure to measure your window correctly and you shouldn’t have a problem with putting and installing these into your window. Also take a note about where you want to put your Velcro, as removing it can strip the paint from your trim so you wanna do it correctly the first time. However I’ve had many a person comment on the ingenuity for the roll out windows in my area and I don’t have to suffer the summer months.

I was pleased to find this easy solution when I was gifted a used portable A/C unit without any sort of window fit kit, especially for my outward opening windows. Although the directions were not quite as clear for outward opening windows, they did describe the adjustments that would need to be made. After watching the instructional video for inward opening windows, it was not difficult to understand the adjustments for outward. I also agree with others that the white plastic is still more pleasing to the eye than a big piece of wood or cardboard stuck in the window. It seals up nicely so no trouble with letting in bugs, rain or debris. Ive had it installed for about 3 weeks and it has worked very well.