Does this unit include the mounting screw

Safety Compliance: Functions as a normally closed switch that opens immediately upon detecting a blocked flue or intake air restriction

12 PSIG Factory Setting ( R to Y Cut In )

which this OEM-grade part delivers consistently across its broad operating temperature range

Precision Adjustment: Wide pressure range (10" Hg to 400 psig) handles everything from low-temp suction to high-side pressure control

Lochinvar & A.O. Smith 100161837 Valve R-410A Does this unit include theThe Lochinvar & A. O. Smith 100161837 Air Metering Valve is a precision engineered OEM replacement part designed for high efficiency combustion control in commercial boilers and water heaters. As a 24V, 50 60Hz component, this air metering valve is critical for modulating the air to fuel ratio, ensuring complete combustion and maintaining peak thermal efficiency. Built for heavy duty HVACR environments, this direct fit valve integrates seamlessly with