The physical specs are industry standard for many residential units: a 1/2-inch hex head for easy socket engagement

Does this part include the pilot tubing or burner bracket

the DMPR-RS312 features a robust B-style link configuration that ensures a secure fit within the jackshaft and drive linkage of Johnson Controls damper hardware

Always verify your boiler's BTU rating and altitude requirements before installation

Key Benefits: Precision Metering: The #46 drill size ensures the exact natural gas delivery required for compatible Weil McLain boiler models

Lennox 97H76 Damper Door Spring The physical specs are industryThe Lennox 97H76 Damper Door Spring is a critical mechanical component designed to provide precise tension and return force for damper assembly operations within commercial and residential HVAC systems. Functioning as the primary HVAC damper actuator spring, this part ensures that air mixing dampers and economizer doors return to their default positions upon system cycling or power loss. Engineered for durability in high cycle environments, the 97H76