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 vertical crank windows and I was looking for a solution to block off the area so we could put the portable A/C tube out the window. Also I wanted something that wouldnt block out all the light from the window, and didnt require construction. This velcro set fits the bill. The best part is that its easy to detach when the A/C isnt in use. The velcro gets a little dusty since we have the window open now, but not a huge deal. At some point I may need to remove the velcro and touch up the paint (the adhesive is thick!) but thats a long way down the road. This is an easy solution for those who arent super handy.

The original window seal that came with the air conditioner I had wasnt waterproof so water came into the seal when it was raining. When I ordered a new one to replace it I picked this because I saw that on the description that this seal is waterproof. When I asked for help for the correct size for my specific window, the seller gave me a quick response and the 400cm window seal they recommended fit my window perfectly. Even the small crack is sealed and there is no hot air or rain coming into the room now. Easy to open and close window, easy to install and a really creative solution. I would recommend this if you have similar issues!

I have pull in windows and I bought this to use with my portable ac to keep the cool air inside. This was really hard to install, I dont know if it was because of my windows, but it was hard to get everything ready. Then after installing it I could still feel some air coming back inside from the zippers, which I already knew would happen but still wanted to give it a chance. At the end I decided to just return it because I wanted to find a better option for my situation, but removing it was another issue. The adhesive removed the paint from my window frame, something to keep in mind if its your situation.

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.

Product works as expected. I have a vertical window that cranks outward w a lever window latch/lock. The Velcro was easy to install and clip/work around window hardware. Velcro is sturdy and holds in place really well. For my style of window there is too much fabric to close the window and latch it closed 100% so I take the insert down each night and put it back up in about 15 seconds each morning. The double zipper is nice but seem extra at least for my style AC unit. Would buy again for a quick and inexpensive solution for portable ACs

Having a west facing second story bedroom with a balcony I have suffered through a few summers and thought this might be the answer to adding an AC unit to the room. Unfortunately they didn’t include the Velcro strips to attach this to the door. I’m still hopeful it’ll work… just with a little more effort on my part.

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 live in NYC, my bedroom is pretty small but has a sliding door out to a lovely balcony which is a gem in the heart of the city. For years, Ive suffered through the hottest days with a ceiling fan because portable ac units have to be vented out. This year, I broke down and bought a portable unit - Im handy and I researched the various ways to vent the hot air out esp since I have shutters so the kit you can buy specifically for patio doors wasnt going to fit flush and all the insulation required to keep it air-tight. Then I can across this product. For the price, I figured it was worth a try. Its easy to install (just make sure you follow instructions and clean the surface you are sticking the velcro on) with no permanent damage ...I wanted my opening on the opposite side so technically it may be on inside out but the zippers are double + on both sides so it works just fine. Is it 100% air-tight? No. - but its close enough that I dont feel the heat coming back in. better yet, I can unzip and use my door w/o obstructions when its not in use. I usually pin the one side open by closing it in the screen or theres enough velcro left over that you could cut a small square and use to keep flaps open when not in use. Once summer is over, I should be able to take down the white part and store for next year. In any case, it perfectly fits my needs!

I like that it was easy to put up, however, I would of prefer d a metal insert as I am 81 and it would have been easier for me, my grand son ordered this for me, it works is all I care.

The velcro will leave a residue that is very difficult to remove. The screen does not keep temperature well and it gets very bright/hot when the sun hits it.