Airgas Model N114G326 Brass High Delivery Pressure Single Stage Regulator With 1/4" FNPT ConnectionDesigned for a wide range of pressure settings, these single stage regulators are recommended for use in petroleum field applications, research laboratories for hydrogenation, catalytic reduction, accelerated age testing, calorimetric testing, component testing, and pressure testing applications. These regulators feature a rugged brass piston, which provides increased safety and reliability at high delivery pressures. A 25 micron inlet filter protects