K4524 Gauge Pressure 4 in 0 to 100 psi Connection Size 1/4 in NPT Connection Location Bottom Accuracy +/-3-2-3 Percent Case Material Steel Case Color Black Socket Material Brass Tube Material Lead Free Phosphor Bronze Lens Material Glass Ring Material Chrome Plated Steel Operating Temp Range -40 Degrees to 150 Degrees F Characteristics Lead Free Wetted Parts Friction Bezel Ring Black Steel Case CRN Registered