[jgw0]

I have had a johnson xl-4 dog door and its about 30 years old and, I think, needs replacing. I have noted that there are several claiming to have replacement doors but I am not sure as the measurements seem a bit off. My basic dog door data:
dog door opening (through wall): 17 3/8"X19"
flap, johnson xl-4 14 3/8"X20?
johnson was bought out by petsafe

I was hoping somebody could give me some advise or rixing/replacing my dog door.
Thank you...................

 

[Sydneyrocky]

I have two pet safe doors, I called them when I needed a replacement flap, they knew the size, etc and shipped it to me with instructions on how to fix it.