Dwyer 4201B 4000 Series Capsuhelic® Differential Pressure Gauge with Case 4000 Series Capsuhelic^® Differential Pressure Gauge with Case, 4″ , 0 – 1 psi, Panel Mount, Analogue – Each

May be used as a readout device when measuring flowing fluids, pressure drop across filters, liquid levels in storage tanks and many other applications involving pressure, vacuum or differential pressure
Contains a simple, frictionless movement that permits full scale readings as low as 0.5″ water column
The pressure being measured is held within a capsule which is an integral part of the gauge, permitting the use of the gauge on system pressures of up to 500 psig, even when differentials to be read are less than 0.1 in. w.c.
The diaphragm-actuated Capsuhelic® gauge requires no filling liquid which might limit its outdoor applications
Zero and range adjustments are made from outside the gauge, and there is no need to disassemble the gauge in normal service
May be used with hydrogen where pressures are less than 35 psi
Optional forged brass housing is required for water or water based fluids
Includes: (1) Capsuhelic® differential pressure gauge, (2) 1/4″ NPT plugs for duplicate pressure taps, (4) Flush mounting adapters with screws, (4) Surface mounting screws