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the 780-845 is the functional and technical successor to the Robertshaw SP745 series
provided the surface is level and secure
Enhanced Operational Safety: Continuously monitors gas valve outputs and flame signals to ensure fail-safe operation during the ignition cycle
maintaining the structural and operational integrity of the burner box
The included shaft is notched to allow you to snap it to the specific length required for your unit's dial depth
Lochinvar & A.O. Smith 100112699 Gasket 318423-701 the 780-845 is the functionalMaintaining a high efficiency combustion seal is critical for boiler and water heater safety, and the Lochinvar & A. O. Smith 100112699 Manifold Door Gasket is the professional grade solution for the job. This genuine OEM replacement part is engineered to withstand the rigorous heat cycling and high temperature environments typical of modern condensing systems. As a HVAC manifold door gasket, its primary function is to prevent hazardous gas leaks and