Name: Seaflo 12V Water Pressure Pump 33 Series 2.8GPM 45PSI SFDP1-028-045-33 Marine RV
Brand: SEAFLO
SKU: DP102804533
Price: 78.99 GBP
Availability: InStock

SEAFLO Pressure Pump 33 Series 12V 2.8 gpm 45 psi - 4Boats

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£78.99

Tax included.

Seaflo 33 Series 12V Water Pump

Part Number: SFDP1-028-045-33 | 2.8 GPM | 45 PSI

The Seaflo 33 Series is a general-duty, on-demand positive displacement pump engineered for high-volume water flow in moderate pressure environments. Its 3-chamber diaphragm design allows for smooth, quiet operation while supplying up to 3 fixtures simultaneously, making it an essential component for marine vessels, recreational vehicles, and off-grid water systems.

RELIABILITY: Built with a heavy-duty motor and Santoprene diaphragm, this pump is capable of self-priming up to 6 vertical feet and is safely designed to run dry for short periods without damage.

Key Features

✔ On-Demand: Built-in pressure switch automatically cycles pump.
✔ Self-Priming: Suction lift up to 6 feet (1.8m).
✔ Run Dry Safe: Protects pump during tank depletion.
✔ Mounting: Industry-standard mounting pattern for easy retrofit.
✔ Protection: Thermal overload protection with auto-restart.

Technical Specs

Voltage	12V DC
Open Flow Rate	2.8 GPM (10.6 LPM)
Shut-off Pressure	45 PSI (3.1 BAR)
Max Amp Draw	5.61A
Inlet/Outlet Ports	1/2"-14 MNPT
Diaphragm / Valves	Santoprene / EPDM

Compatibility / Fitment Guide

Make/System	Application	Notes
Marine & Boat	Freshwater / Potable Systems	Supports 2-3 fixtures (sink, shower)
RV / Caravans	Main Water Distribution	Intermittent duty cycle recommended
Agriculture	Boom/Spot Spraying		Chemical resistant EPDM valves

OEM Cross Reference

Shurflo	4008 / 4009 Series (Direct Performance Match)
Flojet	03526 Series
Standard	Fits standard 3.25" x 4.75" mounting patterns

Questions & Answers

Is this a genuine original part?

This is a genuine Seaflo 33 Series pump, manufactured to meet global ISO 9001:2008 and RoHS standards.

How do I know if it is compatible?

If your current pump uses 1/2" NPT fittings and runs on a 12V system with a flow rate between 2.5 and 3.0 GPM, this is a direct replacement. Check the mounting pattern (3.25" x 4.75") for exact fitment.

Can the pressure switch be adjusted?

Yes, the 33 Series features an adjustable pressure switch located on the pump head, allowing you to fine-tune the shut-off pressure to your specific system requirements.

Note: Please ensure your battery can handle the 5.61A maximum draw and use a minimum 16 AWG wire for installation. For best performance, use the provided strainer to prevent debris from entering the diaphragm.

For the products under £150 the shipping is £6.99.

Free delivery for most items over £150.

Why choose us

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Every order is checked by the 4Boats team. Contact us before ordering if you need help with part numbers, compatibility or availability.

Seaflo 12V Water Pressure Pump 33 Series 2.8GPM 45PSI SFDP1-028-045-33 Marine RV