High Purity Gas Regulator, Mounting Type Cylinder, Number of Stages Two Stage, Compatible Gas Type Breathing Air, Control Type Knob, Maximum Inlet Pressure 3,000 psig, Inlet Connection Size 0.825 In.-14, Inlet Connection Gender Male, Inlet Connection Type NGO, Inlet Thread Direction Right Hand, Outlet Pressure (Maximum) 50 psig, Outlet Connection Size 1/4 in, Outlet Connection Type Tube Fitting, Gas Purity Rating 99.999 Percent, Helium Leak Integrity Rating 1.00 x 10^-9 cc/sec