Williams 9306 Vent Cap R-410A this mechanical thermostat is designed

this mechanical thermostat is designed to withstand the rigors of commercial and industrial environments

The Cleveland Control AFS-222-379C Air Flow Switch is a professional-grade differential pressure switch engineered for critical air proving and energy management applications

preventing excessive energy use in high-traffic areas

While this is a standard two-position toggle

With a precise 5/8" diameter

Williams 9306 Vent Cap R-410A this mechanical thermostat is designedThe Williams 9306 Vent Cap is a critical OEM component designed for high performance exhaust management in direct vent gravity wall furnaces. This heavy duty replacement vent cap ensures proper combustion cycles by streamlining exhaust discharge while simultaneously protecting the intake system from environmental debris and severe weather infiltration. Built for durability in demanding field conditions, it maintains the pressure differentials required