Flow gauge regulators are piston-type fixed-pressure regulators incorporating a flow gauge and are available for different cylinder types and flow ranges. Made of brass and chrome finished, the regulators are robust and because of their ease of use and reliable performance can also be used for homecare. All regulators are available for a maximum inlet pressure of 3000 psi. The cylinder contents gauge indicates when the cylinder is "FULL" and when it should be refilled by indicating a red field marked "REFILL"