Flow Meters are more accurate than the flow gauge regulators.

The pressure gauge which shows how much gas is left in the tank goes from 0 to 3500 psi.

And this flowmeter does not use a diaphragm, so it is more reliable than the flow-gauge style regula

The output flow is adjustable from 10 to 60 cfh (cubic feet per hour), and is indicated by a ball

The fitting is a CGA-580 fitting, so it fits all argon, helium, nitrogen, and argon/CO2 mixed gas tanks.

A very nice thing about this Flowmeter is the outlet will fit both the female 9/16" x 18 nut or the male 5/8" x 18 fitting.

You can see the adapter in the picture. It comes with a standard 1/4" barbed fitting.

If you have a Miller, Lincoln, or Hobart welder, the gas hose from your machine should screw right in, as they should use the 5/8" x 18 male nut.

Specifications:

Color: Transparent + Golden

Material:PC + Copper

Pressure Range: 0-3500 PSI