you must verify the part number on your existing board as thermal requirements and connector pinouts vary by BTU rating and stage configuration

Check the original motor's part number or your equipment's service manual to confirm suitability

the 127750 is technically identical to the PTS4

While primarily designed for the D-3153 series

Dwyer Instruments 2301 Pressure Gage L99H008 you must verify the partThe Dwyer Instruments 2301 Magnehelic Gauge is the professional standard for monitoring low differential pressure in commercial and industrial HVAC systems. Featuring a . 5 0 . 5" w. c. zero center range, this analog gauge utilizes a frictionless Magnehelic movement to provide high accuracy readings without the risk of fluid evaporation or freezing common in traditional manometers. Engineered for air and non combustible gases, the 4" diameter dial