BSA R-10 Part #38 O rings x2
These are replacement O rings for the valve housing (part number 38 or 16-7377) of the BSA R-10. Handy for when you are loosing air between the regulator block and part number 38.
They are black nitrile (rubber) O rings similar to the standard BSA version.
This is for 2 x O rings.
The picture is a generic picture of some O rings, not the actual O rings you are buying.