Dwyer Instruments 475-2-FM Manometer 322056-301 you know that keeping a

you know that keeping a boiler online during peak heating season requires precise components

accommodating varying site requirements

the critical level (CL) must be installed at least 6 inches above the flood rim of the fixture

Always use genuine A

This assembly features a robust 12-volt motor

Dwyer Instruments 475-2-FM Manometer 322056-301 you know that keeping aFor veteran HVACR technicians and industrial contractors, the Dwyer Instruments 475 2 FM Manometer is the trade standard for measuring differential pressure in demanding environments. This intrinsically safe digital manometer is FM approved for use in hazardous locations (Class 1, Div. 2, Groups A, B, C, D, T4), making it the go to tool for monitoring natural gas pressure on boilers and combustion equipment. With a versatile range of 0 to 40. 00" w.