022" NG orifice fits standard 3/16-inch tubing or 1/4-inch adapters

and cotter pin for a complete rebuild of the stem seal

this lower thermostat provides precise thermal sensing to maintain consistent water temperatures and system efficiency

Contamination Protection: Dual metal shields (ZZ) provide a physical barrier against particulates while securing internal lubrication

this Honeywell Analytics test cap is a required tool for verifying the accuracy of life-safety monitoring systems and ensuring compliance with local building codes and safety regulations

Williams P213400 Switch 022" NG orifice fits standardThe Williams P213400 Fan Selector Switch F160 30F is a critical OEM spec replacement component engineered for high performance direct vent and gravity wall furnaces. As a primary HVAC blower control switch, this unit facilitates precise multi speed fan regulation to maintain optimal thermal distribution and equipment efficiency. Designed specifically as a Williams furnace replacement part, the F160 30F integrates seamlessly with Williams models