Lochinvar & A.O. Smith 100163257 Bypass Assembly 318973-401 Direct OEM Compatibility: Specifically engineered

Direct OEM Compatibility: Specifically engineered to replace MARK17U-24 and MARK17X-24 modules without extensive bracket modifications

Reduces Vibration and Fan Rub: Minimizes operational noise and mechanical stress on components

Installing a switch with a higher threshold than specified can lead to unsafe operating conditions and equipment damage

Using the genuine Reznor 131448 prevents torque-induced flexing that leads to belt wear and motor failure

Lochinvar & A.O. Smith 100163257 Bypass Assembly 318973-401 Direct OEM Compatibility: Specifically engineeredThe Lochinvar & A. O. Smith 100163257 Bypass Assembly is a critical OEM component engineered for precise flow management in high efficiency pool and spa heating systems. Built to withstand the rigorous demands of commercial and residential hydronic applications, this 1 2" NPT bypass kit ensures optimal heat exchanger performance by regulating water velocity and preventing thermal shock. This assembly is a direct replacement part designed specifically