I've serviced plenty of the USD Black plastic-knob variants of the standard J-valve, but I have before me the all-chrome version with a what a looks like a 1/2" thread burst disk assembly.
Before I start in on servicing this J-valve, I wanted to ask if anyone could point me to a source of replacement disks for 3000 psi operating pressure?
If I can't easily get some disks, it's destined to become a paperweight.