Series 100 NFI three-piece cast iron booster pumps are used for hydronic heating and cooling in closed-loop systems. 100 NFI pumps are oil-lubricated with a 1/12 HP, 1725 RPM, 115v, single phase motor. Series 100 pumps are reliable, in-line booster pumps intended to pump potable, domestic water from hot water heater tanks to areas such as bathrooms and kitchens or non-potable water through closed loop systems for heating and cooling. They feature a three-piece design, which includes a motor, bearing assembly, and volute. Since the bearings, shaft and seal are all housed within the bearing assembly, Series 100 pumps are easily serviceable in the field. Resilient motor mounting combined with spring-loaded couplers means the pump runs quietly. All Series 100 pumps have O.D.P, open drip-proof, motor enclosures. A tube of oil, flange gaskets, and mounting hardware are included. Flanges are available separately.