Where can one buy pressure cooker gaskets?

go to goPresto.com. I believe the part that you are looking for is part number 09911 automatic air vent.

I have a skyline and have the same problem. The above part looks like what I need to replace.

I have ordered it. Really cannot confirm it is the exact part until I get it and install it.

Good luck.

my direct email is bobkdarden@hotmail.com if you want to find out if it worked. Give me three weeks to get the part.

Bob