Water Pressure Gauge and Water Flow Rate Meter Test 2-1/2 in 0 to 160 psi 0 to 13 gpm Connection Size 3/4 in Female Hose Thread Connection Location Inline Smallest Graduation 5 psi/0.5 gpm Graduations 5 psi/0.5 gpm Accuracy +/-3 Percent Case Material Steel Case Color Black Socket Material Brass Tube Material Copper Alloy Lens Material Plastic Ring Material Black Steel Operating Temp Range -40 Degrees to 150 Degrees F Characteristics Analog Flow For Use With Hose Bib