MACERATOR PUMP SANATARY PUMP, Jabsco 12V Ref 415150-77 1-1/2 barb input--1-1/2 pipe output 3-3/8"H--11"L--4-5/8W ,MACERATOR PUMP DISCOUNT, Macerator Pumps are designed to empty your holding tanks and include a bronze cutter to grind waste down to small particle size. By grinding down the particles, it makes it possible to eject them (pump out) through the discharge nozzle of the pump. They are typically used to empty holding tanks, waste tanks, and other applications. AfterMarket Discount Marine Home Page 1-800-349-2628