Armstrong 182202-643 1/6 Horsepower Armflo E7 Close-Coupled Circulator Pump,Armstrong,182202-643" /> Bronze fitted cast iron for closed systems 30-Percent glass-filled noryl impeller Permanently lubricated stainless steel bearings Single phase, 2 pole Flange sizes (NPT): 3/4, 1, 1-1/4, 1-1/2