California Proposition 65: This product contains a chemical known to the State of California to cause cancer. Gas Regulator, Regulator Supply Type Cylinder, Gas Service Argon, Nitrogen, Stages Single Stage, Inlet Connection CGA-680, Outlet Connection 1/4 in Swagelok, Delivery Pressure Range 200 to 3000 psi, Gauge Size 2 1/2 in, Supply Pressure Gauge 4, 000 psi, Max. Inlet Pressure 3, 000 psi, Body Material Brass, Diaphragm Material Brass Piston, Includes Not Applicable, Standards Listed to UL252 by ETL, Regulator Application High Pressure. This item has been restricted from sale in the following state (s): []