This 24V AC combination-step opening valve features a 3/4" NPT inlet and outlet

Engineered for high-cycle reliability in HVAC terminal unit control

LR) for pressurized safety systems

This 1-groove sheave is a critical component for technicians performing maintenance on belt-driven HVAC blowers

Lochinvar & A.O. Smith 100112348 Burner Assembly 319852-301 This 24V AC combination-step openingThe Lochinvar & A. O. Smith 100112348 Burner Assembly is a direct OEM replacement engineered for high efficiency natural gas water heaters and commercial boilers. This 18 inch natural gas burner assembly features a precision machined #37 orifice, designed to maintain the exact BTU output and flame stability required for optimal combustion. As a critical firing component, it replaces obsolete part number 9007905005, ensuring a seamless fit and