FUNTECK AC Window Seal Kit for Portable Air Conditioner, Compatible with Medium or Large Casement Crank Window and Tilting Window, Waterproof, 157 inch

Our rental house the crank windows and this saved us from having to make any major changes when using our portable air conditioner. Make sure you wipe down the window sill before applying the velcro. Ours lasted all summer with no problems.

I used this product to attach to my portable air conditioner.

Super easy to install and works great! I am a renter, and while I can cut the window and go with the plexiglass option, it's more expensive than I would like while I'm renting. The apartment is really old, built sometime in the 50's, so as you can imagine, I had to get creative in order to make it work. I gave it 4 stars instead of 5 because it is pretty thin plastic so it probably won't work the best as far as insulation and would probably rip pretty easily but putting it in it didn't rip and I don't plan to handle it much so it should be fine. The seal between the hose for the ac and the plastic isn't great either. I used the weather stripping that came with the original window kit to create a better seal.

No issues, used all summer of 2019

Amounted to a couple of pieces of thin plastic and a roll of tape. Useless. No instructions or how to fabricate the seal was included at all. You should be ashamed to put your name on a product this lousy.

Worked perfect and very easy to install.

States maximum window size but cant be adjusted for smaller windows either. No instructions with it. No way to custom fit it to the window. Useless.

This product is impossible to seal completely which allowed bugs in my window!