I've got an older tap-rite primary regulator with single gauge (no high pressure that shows tank level). I'm setting up a keezer and want to pick up a new primary with both gauges so that I don't wind up running out of gas at inopportune times. Wondering if I can disconnect the tank connection from my current primary and convert it to a secondary regulator to have in the keezer for low pressure serving? That connection says left-hand on the back of the regulator.
If I can convert it what fitting am I looking for?