IKSTAR400CM Portable AC Window Seal Kit for Casement, Crank & Skylight Windows – Universal No-Drill Waterproof Vent Kit with Flexible Zipper for Single & Dual Hose Air Conditioners

This works perfect on my casement window. The instructions are pretty vague and not very useful but a quick YouTube video and you're good to go. It's been up for a month and still very sturdy.

Works well, easy to install, good quality

The graphic on the ad implies there is a fixed form to insert two hoses. Actually it's just a series of zippers that lets you place the hoses in a convenient way. It does keep out moisture - as long as you make sure that the seal is tight on the tape side and the velcro side. Using the supplied zip ties helps to secure the zipper around the end of the hose, but self-sealing velcro tape wrapped around the end of the zipper to cover any opening helps to keeps insects out, and is less expensive to replace than zip ties. Reasonably priced, useful instructions and videos, likely to last several seasons.

My set up might be a little janky BUT it works. Installed about a week ago. 4 out of those 7 days has been very very rainy. No leakage and temp has maintained very well. I’d buy again.

The idea behind this window seal kit is great, and I appreciate that it’s no-drill and fits various window types, especially crank windows which are usually tricky. The zipper and material seem durable and weather-resistant. However, installation wasn’t as smooth as advertised—it took some adjusting to get it to seal decently, and the adhesive didn’t stick as securely as I hoped. It does help reduce hot air from coming in, but not completely airtight. Overall, it works okay once set up, but it’s not quite the hassle-free solution I was expecting.

The one I bought was a bit too long. But it’s okay! Still functional. I bought this because the tape and box around my window didn’t look nice and it’s not weather proof. I like the flexibility of this item because if it rains all I have to do is remove it from the stick on Velcro and then re-apply again later if I want. Functionality:I like that it’s somewhat rain proof, and you can remove anytime and reapply if neededStickiness:Make sure you follow instructions and clean your window seal well. Or else the Velcro adhesive will not stick.

I have a casement window that opens from the bottom. I had just purchased this seal and I was having high hopes regarding this purchase, Even though I had read the review rating and it had not been what I was expecting. I was very excited to try this type of window seal, and when I tried to apply it, It took me over two hours. I love the idea of this design, but it did not work well with the application. Some say that it could be a user error when trying to apply the window seal, But after I had it in place, It started coming undone. It only lasted three days before the entire things started to unseal. I may be knew when it comes to these types of products, but it did nothing to drown out any noise coming from outside. I was able to hear the leaves when the wind blows, I could hear people walking, I could hear everything that happened outside. I had to keep my door shut to the space because I was afraid that anything that may hit the windowsill cause the contraption to fall. I understand that with a window seal, There’s going to be some sort of modification to the appearance of the room, but every time I had guest over, they always had to look at that window seal. To be quite honest, It’s not the prettiest of set ups and they appearance isn’t very attractive, but it gets the job done… Mostly. I still could feel on hot days that the air conditioning in the room was not cooling as it should, and I found out that hot air was coming in through the window seal. I like the fact that there is no magnets and that there is a strong adhesive. But it seems that the Velcro strong enough. Adhesive parts stuck glued to my window! So that was an absolute plus! They have Wonderful adhesive! The Velcro not so much. I wish they could revise this design because it is a wonderful idea just executed poorly.

Perfect for these hot days, this article makes it easy, the installation is quick and delivers on what it promises, keeps the air inside leakless, very useful without having to spend too much money