Cartridge Aerator Pumps

Johnson Pump cartridge aerator pumps offer the ease of convenience and years of reliable service. Improved design with easy-to-install Dura-Port discharge port. Smaller profiles to fit in more confined spaces. Easy to change motor cartridge.

Overview

Cartridge Aerator Pumps are designed for efficient livewell and baitwell water circulation, offering compact design, tool-free maintenance, and flexible installation options. Ideal for both freshwater and saltwater environments, they deliver reliable performance with minimal energy consumption.

Key Features

Limited 3 Year Warranty
Capacities: 500, 750, 1000, and 1250 GPH
Available intake configurations: straight or 90°
Compact, easily replaceable all-in-one motor/impeller unit
No tools needed for maintenance
Extremely energy efficient
Water-cooled motor for long service intervals
Improved Dura-Port discharge ports (includes straight and 90° smooth elbow) to prevent stress cracking from over-tightened hose clamps
Meets ISO 8849 marine standard

Technical Data

Part No.	Part No. USA	Description	Voltage	Capacities	Hose sizes
32-2850	28503	Cartridge Aerator Pump 500 GPH 12V Straight	12V	500 GPH (32 L/min)	3/4"
32-3850	38503	Cartridge Aerator Pump 500 GPH 12V 90°		500 GPH (32 L/min)
32-2870	28703	Cartridge Aerator Pump 750 GPH 12V Straight		750 GPH (47 L/min)
32-3870	38703	Cartridge Aerator Pump 750 GPH 12V 90°		750 GPH (47 L/min)
n/a*	28103-00	Cartridge Aerator Pump 1000 GPH 12V Straight		1000 GPH (63 L/min)
n/a*	38103	Cartridge Aerator Pump 1000 GPH 12V 90°		1000 GPH (63 L/min)
n/a*	28123**	Cartridge Aerator Pump 1250 GPH straight		1250 GPH (79 L/min)	1 1/8"
not available outside of the US * 1⅛" outlet. Does not include Dura-Port

Material Specifications

Pump body:	Thermoplastic
Shaft seal:	Lip seal
Shaft:	Stainless steel (SS2343)

Overview

Key Features

Technical Data

Material Specifications

Aerator Pump Overview - Johnson Pump Marine

Aerator Pump Features - Johnson Pump Marine