Four Marine Water Pressure Pump

The Four Marine 12V Series 41 Diaphragm Water Pressure Pump, is a general-duty, positive displacement pump.

Typical applications include: Marine, RV, Agricultural Spraying, General Industrial, Filtration, Beverage Processing, Solar Water System.

Thanks to the quad chamber diaphragm and internal bypass, the 41-Series pump provides high volume water flow, with reduced pump cycling.

It excels in providing high-water flow - up to 4.5 gallons per minute - with moderate pressure and is suitable for all activities needing these requirements. These models are designed to run on water systems with up to 4 outlets and no accumulator tank. It is also suited for use with a holding tank water system, as may be found in a boat, RV or remote cabin.

The 41-Series pumps are self-priming, and can run dry without damage.

It also features a built in pressure switch, allowing the unit to start and stop when it detects a faucet being opened. These pumps are supplied with easy to connect fittings. They're easy to install service and winterize with quick snap-in port fittings.

Technical Characteristics

• Positive Displacement Pump
• Run-Dry capable
• Quiet operation
• Pressure detection (On demand switch), as well as a bypass mode
• Industry mounting pattern
• Thermally protected
• 12V / 6.0A
• Model SFDP1-045-040-41
• Open Flow: 12.5 Lt/Min
• Control Type: Demand & By pass
• Max Draw: 16.5A
• Shut-off Pressure: 40 PSI / 2.88 BAR
• Max Temperature: 60°C
• Weight: 2.3 kg