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

Allows me to use an air conditioner in an unusual window and still close the window when not in use.

I bought this after freezing all winter to accommodate a vent in an outward-opening casement window in my basement. Prior to buying this, the room would be FREEZING with the window cracked just enough to accommodate the 4 vent, even with blinds drawn and insulated blackout curtains. This thing is incredibly effective at keeping out the cold! The material of the seal is thin, but it can be 30°F out and my room is as warm as if the window were shut. Very impressed. Im still using the blinds and curtains for light control-- YMMV if you used it in a bare window. Havent owned it through hot temperatures yet, but so far very pleased with the purchase. Install was easy. Have not noticed any water or critters getting in, despite it being in a deep window well.

Ill start off by saying I am very happy with the way this product has been performing. We have casement windows so ended up purchasing some portable air conditioners and using these window seals to make sure they didnt have to work overly hard to cool the room. So far so good. I am impressed at what a good job theyre doing. However, these are not as easy to install the first time as they make it seem. On their own website they say Install it in just seconds and that is simply not possible. I had to email back and forth with customer service a number of times even after having watched their demonstration videos. Once I got it down the first time, though, the second time WAS a lot easier. Just dont think youre going to be able to unpack this and get it set up quickly without some help.

It was a little tricky to install but now that it is in it is perfect except for some additional material so it is a little messy on the inside but it is in our bedroom so only we see it.

This does as advertised. I can move between bedroom and another room happy with purchase. Bought extra vector to cover 2 windows yes it doesnt seal perfect but does a great job lolike the option if moving unit if needed. Kind of pain moving windows closure will by 2nd one so I just need to move unit keeps my room cool at night so very happy with purchase and still get sunlight in through window.

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.

This window seal is perfect for installing a portable AC in a crank out window. The manufacturer has some videos posted here in the questions section and on you tube to guide you step by step. Skip the printed instructions and go straight to the video. Youll have your portable AC set up and running in less than 10 minutes. The material seems very durable and provides a near air-tight seal. At the end of the season, well take it down, fold it up and store it on a shelf in the closet. For under $20, you cant beat it.

We bought a new house, immediately moved in and a month later had our first baby. On top of all this commotion the water heater broke and flooded the house. Needless to say we were stressed as was our piggy bank. Flash forward and the weather starts heating up. We knew this house had no air conditioning and not a single ceiling fan in sight but the casement windows were a surprise. We rushed to find a solution to utilize our standing air conditioning and keep our baby cool. This product did just that! Takes a moment to read the directions and conceptualize the application especially for us since our windows crank out but once we figured it out, it worked perfectly. I was worried about a complete seal especially with the rain but weve had some major thunderstorms lately and theres been no issue whatsoever. We have since hired a company to install wall split units but until then this product saved us time, money, and stress. Thank you!

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.

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.