This spring is designed exclusively for the Maxitrol RV81 and RV210D series gas pressure regulators

What size hole is required for installation

Automatic Reset Logic: Resolves furnace short cycling by restoring the circuit once the system cools to 150°F without requiring a manual reset

this normally closed SPST switch is engineered to open on temperature rise when the system exceeds its safety threshold

Key Benefits: OEM Compatibility: Exact fit for York

Lennox 32M65 Flue Collar This spring is designed exclusivelyThe Lennox 32M65 Flue Collar is a critical OEM replacement part designed for high efficiency combustion assembly in residential and commercial Lennox gas furnaces and boilers. This precision engineered flue collar features an internal diameter (ID) of 2 inches and an overall length (OAL) of 10. 148 inches, providing a robust, airtight connection between the furnace's heat exchanger or draft inducer and the exhaust venting system. Fabricated from high