New open box Dwyer Mark II Model 25 Manometer - Range of 0-3.0" W.C. for Sale at Chemistry R...
Series Mark II | Molded Plastic Air Velocity Meter | Dwyer Instruments
Amazon.com: Dwyer Series Mark II 25 Molded Plastic Manometer, Inclined-Vertical Scale, 0 to 3 inH2O Measuring Range, Red Gauge Fluid, 0.826 sp. gr. (Limited Edition) : Industrial & Scientific
Dwyer 2002 Magnehelic® Differential Pressure Gauge - 0-2 Inches Of Wat