1st stage ports threading

[Twoblues]

Do regulator manufacturers standardize their dia. and threads per inch in their high/low press. ports? Are Oceanic and Zeagle using the same sae or national fine thread?

 

[LeadTurn_SD]

Yes, the ports on modern 1st stages are "standardized".

A few first stages may have a 1/2" primary or dedicated 2nd stage port (Mares MR-22 is an example), but those are less common.

Best wishes.

 

[Centrals]

Some older models(eg. FSR) of Apeks has this stupid 1/2" port for the LP hose(2nd stage).

 

[Tortuga68]

Just to clarify: FSR is still a current model designation of Apeks; it was the older ATX series that had the 1/2" ports. The current XTX series do not

 

[gizmo1972]

there are a couple of manufactures that have a "primary port!" mares esp for increased flow so it is just for that second stage to that 1st stage port but its not common place