It is standard Manometer used for precision measurement of Pressure, Differential Pressure for flow measurement in plants Zero adjustment scale Wall mounted or stand mounted Also available in Acrylic Body Ranges For Glass Tube : 250 - 0 - 250 mm 500 - 0 - 500 mm 750 - 0 - 750 mm 1000 - 0 - 1000 mm For Acrylic Body : 50 - 0 - 50 mm 100 - 0 - 100 mm 150 - 0 - 150 mm 200 - 0 - 200 mm