Lochinvar & A.O. Smith 100108803 Heating Element 318973-401 provided the casting itself is

provided the casting itself is not cracked or severely corroded

Smith NAT FG40T40 models

This SKU generally covers the plate itself

Does this include the retaining screw and gasket

5 inches WC but remains adjustable from 3 to 5 inches WC to ensure precise manifold pressure during commissioning

Lochinvar & A.O. Smith 100108803 Heating Element 318973-401 provided the casting itself isThe Lochinvar & A. O. Smith 100108803 Heating Element is a heavy duty, screw in water heater element designed for high demand commercial and residential applications. Operating at 240V and 4500W, this Incoloy heating element provides superior resistance to lime scale buildup and dry firing compared to standard copper alternatives. With an immersion length of 12 3 16 inches, it ensures efficient thermal transfer within the tank. This component serves