This general-purpose, single-stage regulator is well suited for closely monitored, short run work. The stainless steel diaphragm makes it suitable for analytical applications. The regulator has a unique design to reduce weight and make the regulator more durabe. The composite bonnet and the outlet valve are incorporated into the regulator body to reduce weight. The external nickel plating, along with the composite bonnets, allows the exterior surfaces to maintain a good appearance in outdoor environments. Nickel plating of the interal gas path surfaces makes it an excellent choice for analytical applications. A preset safety relief valve makes these regulators suitable for use only with noncorrosive gases.