Hey sorry for thread abandonment - i need to go from the output of a regulator to the 1/4" flare male fitting to hook up to the charging hose on my gauge set.

i now see if i want to pressure test that Nitrogen regulators are standard 1/4" flare.

i was trying to sub in 75% Argon / 25% CO2 standard MIG welding gas since that's what I already have.

good suggestion on the custom built hose.

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'85 300D, 'Lance',250k, ... winter beater (100k on franken-Frybrid 3 Valve Kit)
'82 300D, 'Tex', 228k body / 170k engine ... summer car
'83 300TD Cali Wagon 210k, wife's car