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Item #: 1900-5-MR

Low Differential Pressure MR Switch Manual reset; 1.4 - 5.5in w.c.; Air and non-combustible gases

Item #: A-418A

Plastiic Wall mount static pressure Plat plastic housing

Item #: 123-153

Dwyer Water Level Control SPDT Mercury Cast Iron Chamber

Item #: MMF-2

Dwyer .2-2 scfh Air Flowmeter

Item #: 49-543

3/4in Brass Well for Dwyer

Item #: DAW-23-153-11S

Dwyer Pressure Switch 50-1000 Psi Spdt Switch 403 Stainless Bourdon Tube

Item #: 43210B-WP

Dwyer DP switch w/sp housing

Item #: A-301-B

8 in static pressure tip Dwyer

Item #: A-464

Dwyer Flush mount kit for Magnehelic ser

Item #: 2003VA32-231

Dwyer WE Anderson NC pneumatic Valve 245 psi Max Diff Pressure Bronze valve and Trim CV is 25