Panel-Mount Pressure Gauge, Gauge Connection Location Bottom, Gauge Connection Type MNPT, Gauge Connection Size 1/4 in, 0 to 400, psi, Gauge Accuracy +/-0.50 Percent, Basic Gauge Case Material Aluminum, Basic Gauge Wetted Parts Brass / Bronze, Basic Gauge Lens Material Glass, Case Material Cast Aluminum, Case Color Black, Socket Material Brass, Tube Material Bronze, Window Glass WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. -