it is the primary circulator pump for several CW and EW series units

Industrial Build Quality: Constructed to withstand the high-cycle demands and pressure fluctuations typical of commercial HVACR environments

Silent Blade Operation: Parallel 3-inch blades pivot on self-lubricating bushings for quiet transitioning in noise-sensitive environments

Will this fix a humming outdoor unit

Utilizing high-grade copper connections and a precision-wound coil

Grundfos 96450358 Terminal Box Assembly 320788-702 it is the primary circulatorThe Grundfos 96450358 Terminal Box Assembly is a direct OEM replacement component engineered for use with specific Grundfos UP and UPS series circulator pumps. This pump electrical housing provides a secure, moisture resistant enclosure for internal wiring connections, ensuring electrical integrity in demanding hydronic heating and cooling systems. Built from high grade composite materials, the assembly is designed to handle the thermal loads and