CUQOO AC Window Seal Kit 400cm – Universal Fit for Portable Air Conditioners & Tumble Dryers, Zip Closure with Adhesive Fastener, Waterproof & Easy to Install, No Drilling Needed

Simple enough to work out install, does the job perfectly

Cheapest one of these I found. Fitted fine and going strong after a couple of weeks use.

Product is ok but stickiness reduces after a while,

Bought this for the 3 days of summer we have, fitted in a few minutes and stops my A-Hole of a House Cat from escaping out the window.

Fitted properly this works a treat & keeps the cat in!

It's kinda sorta functional, so not a complete waste. However, it's a horrible choice for outward-opening windows even if you manage to fit it fairly snuggly (there are no adjustments for corners, it's basically one long strip, so have fun). Instead of similar seals that can last for years, this one makes an outward opening window impossible to close, so it's a one season buy (unless you like open windows in winter). The zippers are not strong enough to keep the gap stable and of constant size, so enjoy rezipping it often. On the bright side, the velcro glue is decent enough to keep them on sills, but only time will tell if it's going to dry out and make everything fall off. PS. Instructions for installation on different types of windows would help, the little sheet only had a picture for inside-opening windows.. I wonder if the makers understood that this should not be used for other types of windows.

Perfect for my aircon

It's pretty good, does the job but the instructions are nearly useless. I never understand why Chinese companies don't hire a native English speaker to help with their instructions. I just used some common sense as well as a YouTube video to get it set up properly. TIP: Make sure your window frame is CLEAN, wipe it thoroughly with some rubbing alcohol before hand and the tape will stick just fine. 4 days since i put mine up and still stuck all round.