PetSafeExtreme Weather Sliding Glass Pet Door Replacement Flaps – Energy Efficient – Size Medium – Compatible Extreme Weather Sliding Glass Pet Door for Dogs and Cats

I already have the regular door, and I didn’t want to have to buy the extreme weather version. It looks good, but just so expensive! Thanks to the other reviews, I took a chance with these extreme door flaps. The current flaps blows opens when it’s windy outside. The new extreme flaps still do, but way less often. The new flaps are just two of the original flaps, plus a third puffy flap in the middle.To install these extreme flaps into the original door, all you need is a screwdriver and a nail (or maybe a pen would work). You will reuse the existing screws, so no need to go to the hardware store. Unscrew the original flap and discard, but save the screws and the back bracket. Use a nail to push the 4 pins from the extreme bracket. They are very easy to push out. Discard these pins and the gray bracket. Now you have 3 flaps. Just put these 3 flaps back where the original one was and screw them back in. Easy! Took me about 20 minutes. It would have been much faster if I had a helper to hold the back bracket.These 3 flaps together are much stiffer. I was worried my 25 lb dog would have problems going in and out. But no, he is able to use it fine. Note that only the inner flap will attach to the magnet in the frame. The other flaps are just outside. They don’t stick out too much.I’m very happy with these new flaps. I’m sure the entire extreme door would be better, but this is good enough for me.

This is more to be informative about the product for others in my situation. I saw this on sale and saw extreme weather and bought it, then set it aside for 5 months until I wanted to do it, only then seeing the sliding glass part, and it being way too late to return. I have the regular plastic extreme weather door, not sliding glass.As others have noticed, as did I before reading the reviews, you can push the pins out of the bracket and use it in a regular door, BUT two things about that...The pad in between the flaps does not have the holes in the same place. It's easy enough to line up your old one and drill new holes, which is what I did.The flaps are also a little different. They have the exact same part number, PAC11-11038 in my case for the medium, but the vinyl does not come all the way down to line up with the magnet. The magnet is a little bit higher, which you can kind of see in the product pictures, leaving a small air gap on either side of the magnet. This isn't a matter of install height, they just seem to be different on this door. The vinyl on the flaps purchased individually go all the way down (see screenshots).

I read a review that this flap could be used with the standard single pane insert. It most certainly cannot. Otherwise, the flap seemed sturdy and made me wish I had purchased the extreme weather door insert in the first place, over the standard door insert.

We've had a Petsafe dog door for 4 years now. We have the extreme weather inside door & the regular Doogie door for our screen door. The flaps never closed tight so they let in lots of air, rain & for us mosquitoes. When the flaps don't close right you can feel all the air they are letting in because it feels like the furnace shut down. We just Upgraded to the PlexiDor Dog Door & it keeps all the cold air out. I just ordered new flaps for my Petsafe door & it split in half in one week. I decided I was tired of the flaps ripping & not closing all the way. With the cold weather the flaps freeze & when I put the cover on the inside it has frost on it as well. I like Petsafe products but this never was one of my favorites.

I have a Petsafe dog door that’s was installed 8-9 years ago and this does not install the same way. I had to significantly modify (table saw, drill press, etc) and add spacers to make it work.