4Boats
SEAFLO 12V 21-Series Water Pressure Pump 1.2 GPM 35 PSI Marine Boat RV Caravan
SEAFLO 12V 21-Series Water Pressure Pump 1.2 GPM 35 PSI Marine Boat RV Caravan
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SEAFLO SFDP1-012-035-21
21-Series Diaphragm Water Pressure Pump | 12V DC
The SEAFLO 21-Series is a compact, high-efficiency diaphragm pump designed for reliable water pressure in tight spaces. Whether you are upgrading your boat's galley or replacing a caravan water system, this 12V automatic demand pump provides smooth, quiet performance with a built-in pressure switch that starts and stops the pump as you operate your tap.
Key Features
- ✔ Self-Priming: Up to 4 vertical feet (1.2m)
- ✔ Run-Dry Safe: Operates safely without water
- ✔ Automatic Demand: On/Off via pressure switch
- ✔ Quiet Operation: Rubber mounting feet reduce vibration
- ✔ Corrosion Resistant: EPDM valves & Santoprene diaphragm
Technical Specs
| Voltage | 12V DC |
| Open Flow Rate | 1.2 GPM (4.5 LPM) |
| Shut-off Pressure | 35 PSI (2.4 BAR) |
| Max Draw | 4.0 Amps |
| Ports | 3/8" (10mm) Hose Barb |
| Wire Lead | 18 AWG, 13" (33cm) with 2-Pin |
| Max Fluid Temp | 60°C (140°F) |
Compatibility / Fitment Guide
| Application | Recommended Use | Notes |
|---|---|---|
| Marine / Yacht | Galley Sink, Washdown | Supports 1-2 outlets |
| Caravan / RV | Fresh Water Supply | Industry standard mounting |
| Agriculture | Spraying, Circulation | CE certified components |
| Off-Grid Cabin | Gravity Tank Booster | Quiet operation for indoors |
OEM Cross Reference
| Seaflo MPN | SFDP1-012-035-21 |
| Shurflo Equivalent | 105-003, SLV10-AA41, 105-013 |
| Jabsco Equivalent | 42630-2900, Par-Max 1.9 |
| Flojet Equivalent | LF Series (12V) |
Questions & Answers
Is this a genuine original part?
This is a brand new, genuine SEAFLO 21-Series pump, supplied in original factory packaging and built to strict quality standards.
How do I know if it is compatible?
Check the MPN (SFDP1-012-035-21) and your hose size. This pump uses 3/8" (10mm) hose barbs. If your current system uses these connections and a 12V power supply, this is a direct replacement.
How many taps can this pump support simultaneously?
The 21-Series 1.2 GPM model is designed for low-volume applications and typically supports 1 to 2 outlets at a time (for example, a single galley sink and a small handbasin).
Note: Distributed by 4boats.co.uk. Please verify your original pump specifications against the technical data above before purchasing.
