REDTRON 300CM Universal Window Seal for Portable Air Conditioner And Tumble Dryer, Works with Every Mobile Air Conditioning Unit, Hot Air Stop, Easy to Install(No Need for Drilling Holes)

We are experiencing super-hot weather in the UK at the moment and buying this curtain turned out to be a wise move. Before buying this I had a piece of cardboard attached to the end of the pipe and used to try and wedge it in a window but there was so much air flow leakage, it wasn't a good idea. I found the install of the curtain really easy applying the velcro tape, its really sticky so no problems with it coming off. The fit was slightly too big for my door but it didn't matter as managed to make it seal. The zips seem good quality, not had any breakages yet and been using it for a few weeks. Overall an excellent doorway air con curtain.

Just what I was looking for, good size and works well for doors that also open inwards. Easy to install and stays in place. Doesn’t let any air in and cools the room down quickly.

It works just fine once installed but is a bit of a faff to get it around the window just right. Always gets a bit tight in certain spots and the adhesive for the double sided velcro only really lasts for one summer. As long as you are happy to have to re-do it once a year (which on reflection isnt really a hardship) then its absolutely fine.

These are okay for the job but do not fit windows well. The glue used on the velcro strip is an absolute nightmare when it comes to removal. Had to use strong adhesive remover and that barely had any effect. Be prepared for a lot of work removing these once installed.

Adhesive strength so good indoor seal is perfect length and sturdiness is very nice. Cooling ability and the ease of setup good

Great for uk windows as the fittings on aircon machines are for sash windows so these are fabulous

This can only be installed one way. The main zip is fixed together at the top, so whole product must be removed to open my door ( as opposed to just open the zip and walk out) as it's supposed to. this could have been solved by having " open zip top and bottom" but sadly not.

Bought this window seal for use in a stuffy work office where we now have a portable AC unit. It was easy to fit to the edge of the window with the right amount of velcro provided and the zips seem sturdy enough. The gap we leave is enough for the end of the AC hose, though it is of course difficult to create the perfect seal around the hose. Seems to help prevent too much hot air coming in but of course it isn't fully insulated.