Mechanical Flowmeter Product Type Air and Compressed Gas Meter Flowmeter Type Variable Area Accuracy +/-7 Percent Connection Size 1/4 in Connection Type NPTF Compatible Flow Material Air Compressed Gases Media Temperature - Maximum 240 Degrees F Media Temperature - Minimum -20 Degrees F Viscosity - Maximum 500 SUS Voltage - Maximum Not Applicable Housing Material Aluminum Rotor Material Not Applicable O-Ring Material Viton Seal Material Viton Shaft Material Not Applicable