Brand: NITRA Item: Exhaust silencer Connection: 3/8in male BSPT Material: Plastic Quantity per Pack: 2 Working Fluid: Air or inert gas Maximum Operating Pressure: 80 psi (5.5 bar) Exhaust Silencer Type: Cylindrical NITRA pneumatic exhaust silencer, plastic, cylindrical, 3/8in male BSPT. Package of 2.