Do you think you will need that AIr1?
I would buy it from you.
Those things are unheard of here...
I probably could part with it, I have a few of them. I bought it mostly for spare pilot parts. I need to make sure I have a couple of spare diaphragms. One word of warning; removing and replacing the diaphragm and clip on these things is a very delicate task. Don't ask how I know.....