I made one for the standard asa threaded one. I used a shocktech on/off asa and a plug on one side and a 0-300 gauge on the other. I use it for all other regulator that use that window operating pressure besides an NT. Which you Can get a really nice accurate one from DYE for the NT. Best purchase I have made for the NT. Cost wise depends on what you have laying around. You will need a way to relieve the pressure to make adjustments.