K4563 Pressure Gauge Welding Dial Size 2 In (51mm) Range 0-200 psi / 14 bar Connection Size 1/4 In (6mm) MNPT Connection Location Bottom Smallest Graduation 2 psi Graduations 40 psi Case Material Steel Case Color Black Socket Material Brass Tube Material Phosphor Bronze Lens Material Polycarbonate For Use With Pressure Regulators Manufacturers Warranty Length 1 Year