Piston 2900 Lower Piston NHWBP – (FL60104-01)

HOT WATER Piston Assembly – Large Lower Piston Assembly for the Fleck 2900 and 2930 valves. (Will not work on the newer 2900s Valve). This is the NHWBP ( No Hard Water By Pass ) version, made for HOT WATER Applications. This NHWBP Piston DOES NOT allow any water to flow past the valve while the system is in regeneration.