Johnson Pump 12V Twin Port Aerator Pumps The Johnson Pump is a Twin Port Aerator Pump offers the convenience of using only one intake for both a livewell and raw water wash down pump. Comes with both a straight and 90 Dura-port discharge ports. 34 Tapered inlet with upper and lower discharge port. The housing is constructed of durable thermoplastic and is designed with a removeable motor cartridge. Features Removeable motor cartridge Thermoplastic housing 34 Tapered Inlet Easy to clean and maint