Gruntbear Universal Window Seal for Portable Air Conditioner, Portable AC Window Seal Kit, Hot Air Stop Air Exchange Guards with Zip and Adhesive Fastener Works with Tumble Dryer (400cm/157inch)

Good product and fast delivery.

Its definitely easy to install and an economical product to fix the window issue with portable ACs, but the drawback is that it will not stop the hot air coming inside the room. Once the AC is turned ON its difficult to check if its really closing the gap and blocking the hot air seeping in, but take off the portable AC unit and close the zips properly leaving the window on a cold night. Your room will be lot cooler than the remaining part of the house.

Very difficult to install and the double sided tape lasted about two hours before falling off. Dont recommend.

Works for my window that opens outward. No idea about longevity. Why pay more If you dont have to

I was so relieved to find this so I could use a portable AC with my stupid crank windows. This thing is really simple to use and gets the job done. Only complaint is that the Velcro isn’t super sticky: I had to reinforce it with duct tape in several places. Not the end of the world though and still highly recommend if you need to make a portable Ac work in stupid windows

Other than the cheap glue to hold the velcro onto the window this product works well and is very easy to install. My house was built in 1961 and almost all the windows are original and kind of a weird design but I had no problem with the install. However, where the AC hose vents out the velcro popped off from the weight. The glue really doesnt hold up all that well. Otherwise a useful product which pretty much solved my AC dilemma.

Not as described. Doesn’t show in pictures that it tapers which didn’t work for my larger opening even though under the size they mention. Velcro tape already peeling off a very clean flat surface. Junk really.

Does what it’s supposed to do, no issues at all

This was perfect for our window and portable AC. Now unfortunately my window was not exactly like the one in the picture and can open in a way that is split but I found a way to Jerri rig this to fit my needs perfectly.