MK20 High pressure port size?

[Boosted98gsx]

Apparently my Tekna gauge bezel uses a hose for its pressure gauge that has a fitting a bit smaller than the port on my new(ish) 1st stage. Would someone please advise?

The gauge itself appears to have the proper thread on it.

Thank you,
Andy

 

[herman]

Guessing but you must have a fairly old SPG. The old standard was 3/8-24 (same as the current LP port), the current HP standard is 7/16-20. To use it you have 2 options, replace the hose with the correct size end or use a 7/16 male to 3/8 female adapter ($6ish).

 

[Boosted98gsx]

The hose probably needs to be replaced anyways.

Thank you.