WFR's In-line flow/pressure gauge is designed to determine nozzle pressure, static pressure and/or flow pressure. Available in both 1.5" (38mm) and 2.5" (65mm) thread sizes, the 5"-8" long adapter comes standard with rocker lugs, female swivel inlet and rigid male outlet. The line gauge is made from 6061-T5 hard-coated, aluminum alloy. A 2.5" (89mm), 0-160 psi gauge is standard. The gauge face is marked in large easy to read 2 psi increments, and has a ± 1% full scale accuracy certified by the gauge manufacturer.