Brand: NITRA Item: Exhaust silencer Connection: 3/8in male NPT Material: Aluminum Working Fluid: Air or inert gas Maximum Operating Pressure: 250 psi (17 bar) Flow Coefficient: 3.2 Exhaust Silencer Type: Cylindrical NITRA pneumatic exhaust silencer, aluminum, cylindrical, Cv=3.2, 3/8in male NPT.