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)

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.

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.

originally i bought the 300 cm bc my son said it was small casement window but after it was measured, realized needed to 400 cm one so quickly ordered the longer one and returned the smaller one. see photo of how it works with outward swinging casement window. can’t really comment yet on durability but so far works well enough to keep bugs out and cool A/C in

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

I cannot believe I never used one of these before now. This thing is a game changer super easy set up no bugs in just zip it up and forget about it

Product does what it says , BUT the adhesive strips that hold it together are horrible and keep falling apart.

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.

lf you have a casement window that pushes out when you open it, then it’s basically the opposite of what they’re telling you. I think the picture I have attached is how they want you to seal the window with the narrow pointy side on the bottom of window and top, and the larger, wider opening with zipper in the middle for the hose but I’m not sure. I did it another way and it worked better but I had fabric left over.