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Seaflo 12V 1.0GPM 40PSI Water Pressure Pump 21-Series Marine RV SFDP1-010-040-21
Seaflo 12V 1.0GPM 40PSI Water Pressure Pump 21-Series Marine RV SFDP1-010-040-21
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SEAFLO 12V 1.0GPM 40PSI PUMP
Premium 21-Series Diaphragm Water Pump (SFDP1-010-040-21)
The Seaflo 21-Series is a compact, self-priming diaphragm pump designed for localized water pressure and liquid transfer. Ideal for applications requiring low flow at consistent pressure, this pump features an integrated demand pressure switch that automatically starts and stops the motor when the outlet is opened or closed. Built with corrosion-resistant materials, it is engineered for the rigours of marine and mobile environments.
Key Features
- ✔ Self-priming up to 4ft (1.2m) vertical lift
- ✔ Integrated on-demand pressure switch
- ✔ Run-dry safe for normal workloads
- ✔ Thermal protection and ignition protected
- ✔ Vibration-absorbing rubber mounting feet
Technical Specs
| Voltage | 12V DC |
| Flow Rate | 1.0 GPM (3.8 LPM) |
| Pressure Setting | 40 PSI (2.8 Bar) |
| Current Draw | 4.0A Max |
| Ports | 3/8" Hose Barb |
| Diaphragm | Santoprene |
Compatibility / Fitment Guide
| Application | System Usage | Notes |
|---|---|---|
| Marine / Yachts | Deck wash, sink faucets | Suits 1-2 fixtures |
| RV / Caravans | Potable water systems | Compact footprint |
| Agriculture | Spot sprayers, liquid transfer | Chemical resistant EPDM valves |
| Solar Water | Circulation and filtration | Ideal for 12V battery banks |
OEM Cross Reference
| Seaflo MPN | SFDP1-010-040-21 / DP101004021 |
| Shurflo Equivalent | 105 Series (e.g. 105-003, 105-013) |
Questions & Answers
Is this a genuine original part?
This is a genuine SEAFLO 21-series product, recognized globally as a leading high-performance alternative to more expensive marine pump brands.
How do I know if it is compatible?
Compare the flow rate (1.0 GPM) and pressure (40 PSI) with your current pump. If your system uses 3/8" hosing and a 12V DC power supply, this is an excellent replacement for most small-scale demand systems.
Can this pump be used with salt water?
Yes. The internal components, including the Santoprene diaphragm and EPDM valves, are chemically resistant and suitable for both fresh and saltwater applications.
Note: Please verify your plumbing size and power requirements against the specifications above before purchasing. Distributed by 4boats.co.uk.
