Overview Product Description S25, S-25 order number 174031MF-013, (former 174031-013) Three Piece Hot Water Circulator Pump, 1/12 h.p., 115V single phase built in thermal overload protection fitting in place of Bell & Gosset series 100, bronze fitted . These custom circulators feature the classic horizontal in-line design, engineered for durability and smooth operation. Designed for large flow applications. Impellers and motors are fine-tuned to meet the exact system requirements. Flange size, NPT, fits 3/4, 1, 1 1/4, 1 1/2 inch. *** Please call to check availability - this item may have to ship from the factory *** Product Videos Custom Field Product Reviews