... inch diameter dial face Temperature 20 to 140F Differential Pressure GageApplicationsThe gage is the industry standard to measure ... pressures, filter resistance, air velocity, furnace draft, pressure drop across orifice plates, liquid levels withbubbler systems and ... pressure taps, two1⁄8" pipe thread to rubber tubing adapters and three flush mounting adapters with 3 screws SHD Differential Pressure ...