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SEAFLO 12V 1.5 GPM 200 PSI 31-Series DC Diaphragm Pump – Self-Priming High-Pressure Water Pump for RVs, Boats, Agriculture, and Cleaning – Quiet Operation, Run-Dry Safe, Built-In Pressure Switch

4.4 (1) Write Review
Free shipping on orders over $29.99

$116.55

$ 51 .11 $51.11

In Stock

About this item

  • [ SPECIFICATIONS ] : Model: SFDP1-015-200-31 | Voltage: 12V | Flow Rate: 1.5 GPM (5.5 LPM) | Shut-Off Pressure: 200 PSI (13.7 BAR) | Max Draw: 7.0A | Priming Capabilities: 6 feet (1.8m) suction lift | Max Temperature: 140°F (60°C) | Ports: 3/8"-18 FNPT
  • [ POWERFUL HIGH-PRESSURE PERFORMANCE ] : The SEAFLO 31-Series 12V water pump delivers a steady 1.5 GPM flow rate with an 200 PSI shut-off pressure, making it perfect for RV water systems, agricultural sprayers, marine use, and high-pressure cleaning applications.
  • [ SELF-PRIMING & RUN-DRY SAFE ] : This diaphragm pump is capable of self-priming up to 6 feet, ensuring reliable operation in a variety of setups. Its run-dry safe design protects the pump from damage when water runs low.
  • [ BUILT-IN AUTOMATIC PRESSURE SWITCH ] : Features an adjustable pressure switch that automatically starts and stops based on demand, providing on-demand water flow while preventing unnecessary motor wear.
  • [ QUIET & EFFICIENT OPERATION ] : Engineered for low noise and vibration, this pump operates as quietly as a standard room fan, ensuring a disruption-free experience for RV and marine environments.
  • [ DURABLE, HEAVY-DUTY CONSTRUCTION ] : Built with EPDM valves and a Santoprene diaphragm, this marine-grade pump is designed to withstand tough conditions in agriculture, boats, and industrial cleaning applications.
  • [ EASY INSTALLATION & MAINTENANCE ] : Features an industry-standard mounting pattern for quick installation. Threaded connections with multiple fittings allow for seamless integration into existing systems.
  • [ VERSATILE APPLICATIONS ] : Ideal for agriculture, RV water pumps, boat washdown systems, cleaning equipment, and sanitation applications, ensuring consistent and reliable water pressure wherever needed.
  • [ 4-YEAR WARRANTY ] : Backed by SEAFLO’s industry-leading 4-year warranty, this high-performance diaphragm pump ensures peace of mind and reliable service for years to come.


The SEAFLO 31-Series DC Diaphragm Pump is engineered for high-pressure applications, delivering 1.5 GPM with a reliable 200 PSI shut-off pressure for continuous, on-demand operation. Ideal for RV water systems, boats, agricultural spraying, and sanitation, this 12V diaphragm pump is self-priming up to 6 feet and features a built-in automatic pressure switch that starts and stops when needed. Designed for quiet operation, this pump produces minimal noise and vibration while ensuring optimal performance. The run-dry safe design prevents damage when water supply is low, making it a durable and low-maintenance choice for any application. With heavy-duty construction, EPDM valves, and a Santoprene diaphragm, this compact and efficient pump is built to last in harsh environments. Whether used in agriculture, marine settings, cleaning systems, or portable water transfer, the SEAFLO 31-Series ensures consistent water flow and high-pressure performance every time.


Jeff h.
Reviewed in the United States on April 11, 2025
Had trouble getting pump to pressurize. Turns out pilot error intake line had a slight leak pump. Works great. Very happy. Going to of buy another
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