Cat Door for Window with Safety Window Lock, Adapt to Windows of Different Width, 5 Min Non-Destructive Installation Cat Window Door Insert, Aluminum Alloy Frame, 4 Locking Modes, for Cat Only

This is perfect! I didn’t want to cut any holes in my walls or doors but my cats want to be able to get in and out without fussing with their pesky humans. This made that happen! You do lose a little warmth when you use it, it is single paned, but not as much as you would if you just left the window open. You can block entrance or exit or both, we only had to do it once when we had a windstorm. I’d recommend remembering when you lock it though because your cat won’t be too happy with you if they hit their head after the storm passes, found out the hard way. It looks natural in the window, it’s fairly easy to install and the springy sides make the fit just right! It is a bit thin, but thick enough to be sturdy and I doubt it will break any time soon. Super functional and I doubt recommend it.

This is exactly what I have been looking for! The cats have a catio and go in and out through the living room window. In the past I had a pet door with a piece of wood or foam next to it. It didn't look good, couldn't been seen through (obviously) and could be pushed out (I learned one night). This window unit was extremely easy to install, looks amazing, is very high quality and the cats love using it. They now sit on the cat tree and look out through the window when the weather is not too their liking. The fit is nice and tight in the window which allows me to sleep better knowing that I won't wake up to raccoons in my house...again. It is much more weather resistant and they have done everything they can to make it so. The cats find it easy to use. The locks function just as advertised, though the middle one sticks a bit. It's not bad, just a little tight. When I build the addition on the catio I will be buying a second door!

My cat is feral and always wants outside! This was a great addition for us to curb behavioral issues. It was EXTREMELY easy to install, is adjustable, and beautiful for what it is! The only drawback that has been a pain is that the magnet latch is very, very weak. A gust of wind and all the winter air will come in. I ended up getting weighted magnets and it has helped a bit, but i wish the latch magnet was stronger. Almost wish I would’ve gotten a collar key one! But i do enjoy it. Sorry in the picture it is so dirty, it has been well loved for a few months now and hard to keep clean in winter! The circles on the door are the weighted shower curtain magnets.

My cats love their own door to go in and out as they please. Easy to install, durable, high quality.

Measure carefully! I saw "adjustable design fits various sizes" and hit "Add to Cart" not realizing that I still had to order the right size. Fortunately, they were very kind about the return and I was able to get the right size immediately. It comes with several different types of seals to make sure you're not letting all of the air out and was incredibly easy to install and to lock. Now if my cat could just figure out how to use it.

This window cat door works well. It took me two weeks to train my cat to use it. I put a treat on the sill out side the window and a couple on the inside sill. He took the ones on the outside. Then I only had the inside treat where he could see it. Also refused to let him in through the door. He then pushed in the window door and ate the inside treat. Removed the inside treat and now he comes in the window door all the time. Had hip surgery and he was trained so I didn't have to get up to let him in. Easy to install. If you live in a cold area there is air leakage around the door itself and some around the unit. It is easy to fix it around the unit but not around the door. The built in gasket needs to be a bit longer

This cat window was easy to install and worked exactly as indicated. Others we had tried got stuck open as soon as our at went through. But this flap closed easily. it fit easily in our standard size window.

I'm very happy with this. It's easy to install and the cats use it all the time. The only complaint is that the magnet is not strong enough to hold it closed sometimes.