This is what is on the pot at present, the ports into the trap are 3/8.The bottom port on the on the gauge is smaller 1/4" can check when take it off. I've Googled but can't seem to find a separate regulator and watertrap. So suppose I'm correct in fitting a combined regulator and trap. How would I go about fitting it in? I also want to fit a low pressure gauge on regulator 0-60 psi is it just a question of finding correct back fitting gauge and screwing it into the regulator? Cheers.