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