A double action piston pump simultaneously draws new flush water as it discharges the wastewater. By using raw water for flushing, on board water supplies can be reserved. The PHII pump has a unique, easily replaceable seal cartridge. A simple quarter turn of the water control knob allows the bowl to be pumped dry providing the user with the option of emptying the bowl in heavy seas. Size: 14-1/16"H x 19-1/2"D x 17-3/4"W (Marine Bowl)
