Lochinvar Pump Bearing Kit (100277757) matrix This OEM check valve is

This OEM check valve is a practical maintenance part for compatible AF 300-29X systems that need the correct one-way valve during service

Before ordering

In a pump or trap assembly

Helps restore pressure-based safety monitoring

Lochinvar Pump Bearing Kit (100277757) matrix This OEM check valve isThe Lochinvar pump bearing kit is designed for compatible heater and pump applications where worn bearing components need replacement. A bearing kit is useful because it helps support smoother rotating movement within the pump assembly, contributing to more dependable operation and reduced mechanical wear. This replacement is especially useful when the original bearings are noisy, rough, worn, seized, or no longer supporting proper pump performance.