The RG Regulator Series promotes a compact design with Exhausting and Non-Exhausting 10-32 Female porting configurations to fit the exact end use application. The Exhausting Regulator is designed for air only, exhausting through the .063 orifice so that line pressure is equal to the regulator setting. The Non-Exhausting Regulator can be used with air or fluids. The Panel Mount Regulators require a .500 hole and are supplied with two Electroless Nickel Plated Panel Nuts.