' Pressure Gauge, Sprinkler System, 3-1/2 In., 0 to 300 psi, Connection Size 1/4 In. NPT, Connection Location Lower, Smallest Graduation 5 psi, Graduations 50 psi, Accuracy +/-3-2-3 Percent, Case Material ABS Plastic, Case Color Black, Socket Material Brass, Tube Material Phosphor Bronze, Lens Material Polycarbonate, Operating Temp. Range -40 Degrees to 150 Degrees F, Series 1005P '