Twin Port Aerator Pumps

Marine – Recreational / Fishing Livewell Pumps

Johnson Pump Marine Twin Port Pumps offer the convenience of using only one intake for both the live well and raw water wash down pump duties.



  • Capacities 500, 750, 1000 or 1250 GPH
  • Tapered inlet connects directly to the sea cock and the upper outlet port provides a continuous flow of water through the ¾” discharge to the live well.
  • Lower outlet port connects to a wash down pump through either a ½” or ¾” port.
  • New high pressure inlet seal easily handles the higher pressures created by high speed pickups commonly used.


Technical Data

Pump body: Thermoplastic
Shaft seal: Lip seal
Shaft: Stainless steel (SS2343)
Voltage: 12 V DC
Capacities: 500 GPH (32 L/min)750 GPH (47 L/min)1000 GPH (63 L/min)1250 GPH (79 L/min)
Hose sizes: 500 GPH – 1000 GPH: 3/4″ discharge (1/2″ or 3/4″ wash down)
1250 GPH: 1 1/8″ discharge (1/2″ or 3/4″ wash down)


Part numbers

Part No. Part No. USA Description
32-48503 48503 Twin Port Aerator Pump 500 GPH 12V
32-48703 48703 Twin Port Aerator Pump 750 GPH 12V
48903 Twin Port Aerator Pump 1000 GPH 12V
48103 Twin Port Aerator Pump 1250 GPH 12V*
*1 1/8″ discharge to livewell. Does not include Dura-Port.