Tuning Oring for Gauntlet

[PolarisRngr]

Hello, is there anyone that has a part # or size for the Oring that goes on the fill nipple? The oring I need is the one that is on the fill port right where you thread into the regulator. The o rings I’ve tried are too thick. Thanks 

 

[KatoKevin454]

try a thin 1/8" bsp Delrin seal instead, better seal that doesn't wear out as easily.

make sure the hole is big enough for the valve to open,

 

[KatoKevin454]

a Teflon washer would also do the job.