High-performance 12V Water Pressure Pump for Boat and RV

This 33 Series 12V diaphragm pump delivers reliable water pressure for marine, RV and general fresh water systems. With a 3-chamber design, 3.0 GPM flow rate and automatic pressure switch, it provides smooth and consistent performance for multiple outlets.

Important Features

✔ Water Pressure on Demand
Built-in pressure switch automatically starts and stops the pump when a faucet is opened or closed, ensuring stable 45 PSI water pressure.

✔ Self-priming & Dry-running safe
Can self-prime up to 1.8m and can be run dry without damage, making installation easy and reliable.

✔ Smooth & Quiet Operation
Equipped with rubber mount to reduce noise and vibration during operation.

✔ Durable 3-Chamber Design
Made with EPDM valves and Santoprene membranes for long-lasting performance in marine and RV environments.

✔ Compact & Easy to Install
Serves 3 or more 1/2" outlets and includes standard 1/2"-14 MNPT ports for easy connection.

Note: The color of the pump may vary depending on the production batch. Specifications and performance remain the same.

Technical Specifications

• Model: SFDP1-030-045-33
• Voltage: 12V
• Open Flow: 3.0 GPM (11.3 LPM)
• Shut-off pressure: 45 PSI (3.1 BAR)
• Restart pressure: 41 PSI ± 5 PSI
• Priming capacity: 1.8 m suction lift
• Max Height: 1.8m
• Max Temperature: 60°C
• Max Current Consumption: 7.5A
• Valves: EPDM
• Membrane: Santoprene
• Ports: 1/2"-14 MNPT
• Control type: Pressure switch + bypass control