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)

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

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.

My expectations weren’t high, I have to admit, but this thing worked great on my outward rolling-old type casement windows, much better than I’d even hoped, I can even close and latch the window with it completely still installed. Don’t know about durability yet, the installation wasn’t as bad as I had imagined either. A great answer to casement windows of any type. Mine were 17” wide and 47” tall.

A+++++

I have an apartment and need a kit to install my portable ac into the window--and this works very well!

Applying the seal was a nice and smooth process, however, the zip ties to keep it closed are too short to wrap around your exhaust tube. Not only that, the zipper is too small to loop it through.

Definitely useful to install

I have some older windows in my house that I wanted to be able to put a air conditioner vent out this was very easy to install very durable and works as it should

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.

I got one of those Dalek air conditioners, but it had no venting tubing and the plastic hose connector was broken. Epoxy and new parts made it work, but it was a trick to vent it out a tiny pantry window. I really expected this kit to be a mess to work with, but it was easy. It doesnt stay put quite as well as I had hoped, but that may be because it was hard to get rid of all the kitchen grease at the edges of the window frame.