I just bought this threaded diffusion stone from MoreBeer:
And I have a disposable oxygen tank with this regulator:
The inlet for my threaded stone looks to be 3/8" or 1/2" un barbed, and my oxygen regulator has a 3/16" barb. What is the best way to attach a hose between the two? Is there another regulator out there that has a removable barb to put a bigger one on?
Also, is there any disposable tank regulators that has a LPM gauge, or does anyone know what LPM these regulators run at?