Optimized for low initial resistance to maintain system efficiency and blower motor longevity

Its heavy-duty construction ensures stable contact closure across the DPDT relay terminals

25-inch diameter provides the necessary leverage and speed reduction for specific blower applications

Can I use a universal defrost switch instead of the 63K10

Grundfos 59896123 Pump 326058-756 Optimized for low initial resistanceThe Grundfos 59896123 is a high performance 1 25 HP bronze circulator pump engineered for 115V applications, including domestic hot water recirculation, hydronic heating, and solar thermal systems. This UP15 18BUC5 model features a lead free bronze housing, making it essential for potable water loops where corrosion resistance is non negotiable. Designed with a wet rotor and ceramic shaft, it provides a max flow of 14. 5 GPM and a max head of 14. 4