Seaflo 12V Macerator Pump MP1-1200-1
12 GPM Flow Rate | Premium Marine & RV Waste Solution
The Seaflo MP1-1200-1 is a high-capacity 12V macerator pump designed specifically for emptying marine and recreational vehicle holding tanks. Featuring a heavy-duty seamless shell motor and a dual-blade chopping system, this pump efficiently grinds waste and toilet paper into fine particles for seamless discharge.
Key Features
- ✔ 4-Blade Chopper: 316 Stainless Steel design
- ✔ Run-Dry Protection: Safe for short durations
- ✔ Self-Priming: Lifts up to 5 feet (1.5m)
- ✔ Ignition Protected: Safe for engine compartments
- ✔ Anti-Clog: Manual turn key to clear debris
Technical Specs
| Voltage | 12V DC |
| Flow Rate | 12 GPM (45 LPM) |
| Current Draw | 12.0 Amps (Max) |
| Fuse Size | 20.0 Amps |
| Inlet Port | 1.5" (38mm) Barb/NPT |
| Outlet Port | 1" (25mm) Hose Barb |
| Duty Cycle | Intermittent |
Compatibility / Fitment Guide
| System | Application | Requirement |
|---|---|---|
| Marine Sanitation | Yacht & Boat holding tanks | 12V DC Supply |
| RV / Camper | Black & Grey water discharge | 1.5" Tank Outlet |
| Fish Boxes | Scale & waste evacuation | Horizontal/Vertical mount |
OEM Cross Reference
| Jabsco | 18590-2092 |
| Johnson Pump | 10-24453-04 / 10-24453-01 |
| Shurflo | 3200-001 / 3200-011 |
| Flojet | 18555-000 |
Questions & Answers
Is this a genuine original part?
This is a premium Seaflo brand macerator pump, supplied by 4Boats. It is manufactured to meet or exceed OEM standards and serves as a direct upgrade or replacement for major brands like Jabsco and Johnson.
How do I know if it is compatible?
Verify that your current system uses a 12V DC power source and has a 1.5-inch inlet. Check the "OEM Cross Reference" list above; if your model number is listed, this pump is a guaranteed fit.
What happens if the pump gets clogged?
This model features a rear shaft access under a rubber cap. You can use a flat-head screwdriver to manually turn the motor shaft and loosen the impeller/chopper blades without disassembling the entire unit.
Note: Intermittent duty only. Do not use for continuous pumping applications. Ensure your wiring is rated for a 20A fuse.
