best fitting for cast iron water pump
For years, fittings for cast iron water pumps lacked a secure, corrosion-resistant connection—until now. Having tested numerous options, I can tell you that the Grundfos 519604 Pump Flange Set for UP15/UP26, Cast Iron really stands out. Its 1-1/2″ NPT threads fit with a solid, threaded connection, making it reliable even under high pressure. The gasket … Read more