Flowmeter, Product Type Variable Area Flowmeter, Flowmeter Type Variable Area, Accuracy 3 Percent, Connection Size 1/4 in, Connection Type FNPT, Compatible Flow Material Air, Media Temperature – Maximum 130 Degrees F, Media Temperature – Minimum Not Applicable, Viscosity – Maximum Not Applicable, Voltage – Maximum Not Applicable, Housing Material Polycarbonate, Rotor Material Not Applicable, O-Ring Material Buna-N, Neoprene, Seal Material Not Applicable, Shaft Material Not Applicable