While originally designed for R12 refrigerant

it is a Made in the USA component that meets rigorous gas system piping standards for natural gas and propane (LP) applications

Direct Compatibility: Specifically engineered for Modine HVAC equipment

Ensure correct HVAC blower assembly balancing by installing this factory-specified hardware

This natural gas regulator part is fully compatible with 143-80

Schneider Electric (Erie) 0453H0077GB00 Actuator 320788-704 While originally designed for R12The Schneider Electric Erie 0453H0077GB00 is an industrial grade, 120Vac medium duty actuator engineered for precise control in HVAC damper systems. Featuring a direct drive mechanism and clockwise (CW) rotation, this two position damper actuator provides reliable mechanical operation with a 55 in oz torque rating. The integrated spring return safety feature ensures the damper returns to its fail safe position during power interruptions, preventing