Lochinvar & A.O. Smith 100210052 Heating Element 318423 701 the Series H traps are the Series H traps are specifically designed for systems with modulating steam pressure from maximum down to vacuum it features a robust internal pressure relief valve and optimized motor winding protection to ensure durability under high head pressures Contractors can rely on this genuine 100210052 element to restore energy efficiency and system reliability without the compatibility risks associated with universal counterparts installing a 240V element in a 208V circuit will result in a significant drop in actual wattage output (approximately 3380W)