Description
Manometers (draft gauges) measure a single pressure or the difference between two pressures. The curved inclined-vertical tube of the Model 25 gauge provides higher ranges with more easily read increments at low readings. Included with each Mark II manometer are two tubing connectors for 1/8″ pipe or sheet metal ducts, two mounting screws, 1 ounce bottle of indicating fluid, red and green pointer flags and complete instructions.


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