Grundfos 519604 Cast Iron Flange Set is compatible with Grundfos UP Series Circulator Pumps. This kit includes (2) flanges, (2) gaskets and (4) bolts and nuts. Features NPT end connections and a 1-1/2" fitting size. Constructed of durable cast iron material. Check manufacturer recommendations to ensure a proper fit.
Grundfos cast iron flange sets include: 2 each - flanges, gaskets, bolts with nuts. Use with Versa Flo UP and UPS pumps.