Durable Construction: Built with high-grade materials to ensure long-term stability in demanding HVACR applications

This genuine motor module ensures that your system maintains its factory-specified HVAC energy efficiency and static pressure performance without the risks associated with generic alternatives

Key Benefits: Precise Microprocessor Control: Delivers consistent 4-second TFI and provides an automatic one-hour reset after lockout for safe system recovery

while the high-fire offset range (0°F-20°F) allows for granular tuning of the HVAC combustion cycle to maintain peak equipment efficiency

Smith 100291509 Anti-Scale System

Robertshaw 720-403 Valve 328140-751 Durable Construction: Built with high-gradeThe Robertshaw 720 403 is a versatile slow opening gas valve engineered for precision fuel control in residential and light commercial heating applications. This dual voltage gas valve operates on both 24V AC and 750mV systems, making it a critical stock item for technicians servicing standing pilot furnace units or millivolt boilers. With a 1 2" NPT inlet and 3 4" NPT outlet, the 720 403 offers a high capacity flow rate of up to 150,000 BTU, while