The 3SD & 4SD Series cast iron sewage pumps feature a dual seal design, providing layer of protection between the fluid being pumped and the sensitive electronics of the motor. When equipped with an optional seal fail probe and wired into a panel, the pumps warn of a potential leak before severe damage occurs. With the 3SD featuring 3” discharge & 2.5” solids handling, and the 4SD featuring a 4” discharge & 3” solids handling, these “Complete. Reliable. Blue.” pumps are great solutions for residential, light commercial and industrial settings.
