Key Benefits for HVAC Contractors Precise LP Regulation: Includes a high-tension regulator spring calibrated for LP gas pressure requirements

60Hz power source

The Lennox 45H83 Limit Switch is a critical OEM replacement part engineered for high-temperature thermal protection within residential and commercial HVAC systems

this straight-thru design supports a 1/2 PSI maximum inlet pressure

Its dual-terminal design—combining binding head screws and quick-connect terminals—allows for rapid field replacement and versatile conductor termination

Sensus 143-16-023-03 Orifice Key Benefits for HVAC ContractorsThe Sensus 143 16 023 03 Orifice is a precision engineered 1 1 4" gas regulator orifice designed specifically for the Sensus 243 service regulator series. Built to industrial standards, this replacement component facilitates critical flow control for high capacity applications including commercial boilers, large scale furnaces, and district regulator stations. When installed in 2" NPT or flanged bodies, this orifice size supports a maximum inlet