fitting both 3/8-inch and 1/2-inch round or square shafts commonly found in commercial ductwork

Variable pitch designs allow technicians to adjust the fan speed on-site to compensate for ductwork restrictions or changes in static pressure without changing the motor speed or pulleys

this specific valve is calibrated exclusively for natural gas applications

this furnace draft inducer switch is essential for preventing the ignition sequence if the atmospheric pressure differential is insufficient

Lennox 99K65 Gas Valve R-410A fitting both 3/8-inch and 1/2-inchThe Lennox 99K65 Gas Valve is a factory original OEM component manufactured by Honeywell under part number VR8205M2450. This 24V single stage control is engineered for precise gas pressure regulation in residential furnaces and is factory set to a 3. 5" W. C. output. As a direct replacement for 99K6501, 63K88, and 63K8801, it ensures proper manifold pressure for optimal combustion and heating efficiency. This valve is highly versatile, supporting