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Service & Suport
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° | |||
| 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° | |||
| 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° | |||
| 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 |
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Material Specifications
| Pump body: | Thermoplastic |
| Shaft seal: | Lip seal |
| Shaft: | Stainless steel (SS2343) |
See this product in the Johnson Pump Marine Catalog: US ‖ GB ‖ DE ‖ ES ‖ FI ‖ SV