Molded nylon; nylon tubing; rapid shutoff, acrylic plastic top; flexible vinyl-plastic columns, flexible spring steel scale calibrated in in. Of water using water; in. Of mercury using mercury; pressure range 4-0-4 in. To 60-0-60 in.; velocity and static pressure, for leakage, fan and blower tests, calibrating control devices, gas pressure; total pressure 50 psi; roll up for easy handling
