MRGVFLO 12V DC RV Fresh Water Pump — 7 GPM, 70 PSI, Self-Priming Diaphragm with Auto Pressure Switch (Compact, Quiet)

MRGVFLO's upgraded 12V DC RV Fresh Water Pump delivers up to 7 GPM and 70 PSI with an automatic pressure switch for quiet, reliable fresh-water delivery in RVs, boats, and remote cabins.

This compact, heavy-duty diaphragm pump pairs high flow and robust construction to replace or upgrade on-board water systems. Built from ABS plastic and stainless steel components with a five-chamber diaphragm and NSK double ball bearings, it is optimized for continuous household-style water use while minimizing noise and corrosion. The unit is self-priming, designed for 12V battery systems, and includes a strainer and integrated pressure controller for turn-on/turn-off automation.

How much water pressure and flow can I expect?

The pump is rated up to 7 gallons per minute (GPM) and a maximum of 70 PSI, which supports showers, sinks, and other household fixtures commonly found in RVs and boats. Actual output depends on supply head, plumbing restrictions, and battery voltage.

• Peak flow: 7 GPM for steady fixture use.
• Maximum pressure: 70 PSI; automatic switch prevents over-pressurization.
• Consistent delivery for showers, faucets, and small appliances.

How does the automatic pressure switch affect operation and maintenance?

The built-in pressure switch starts and stops the pump to maintain set pressure without manual intervention, which reduces cycling and extends component life. It also makes the system plug-and-play for everyday use: you open a faucet and water flows; close the faucet and the pump stops.

• Automatic start/stop for hands-free pressure control.
• Reduces pump wear by limiting unnecessary run time.
• Requires a 40A fuse in-line per wiring guidelines to protect the electrical system.

How quiet and energy-efficient is this 12V pump for off-grid use?

The five-chamber diaphragm layout combined with NSK double ball bearings minimizes vibration and motor noise, making it suitable for small living spaces. Running from a standard 12V battery, the pump balances flow with low electrical draw when compared to larger AC systems.

• Quiet operation ideal for cabins, RV interiors, and marine berths.
• Designed for 12V battery systems—suitable for off-grid setups.
• Follow the manual for wiring and fuse recommendations to maximize efficiency.

What materials and servicing should I expect for durability?

MRGVFLO built this pump with corrosion-resistant ABS plastic and stainless steel components to withstand marine and outdoor environments. Routine maintenance is straightforward: clean the strainer, inspect hoses, and replace wear items as needed to keep the pump operating at peak performance.

• Durable ABS housing and stainless steel components resist corrosion.
• Accessible strainer and serviceable diaphragms for easy upkeep.
• Backed by a 3-year warranty and responsive customer support.

Who is this for: The MRGVFLO 12V 7GPM, 70PSI fresh water pump is aimed at RV owners, boaters, caravan travelers, yacht crew, and off-grid residents who need a dependable, quiet, and compact pump for daily water use. Choose this unit if you want automatic pressure control, corrosion-resistant materials, and a service-friendly design that integrates with standard 12V systems.