Micro Diaphragm Pressure Water Pump with 0.8L Tank – Ideal for RV, Yacht & Marine Applications

Keep your water supply running smoothly on the water or the open road. This compact micro diaphragm pressure water pump is engineered for reliable, constant-flow performance in demanding environments including yachts, sailboats, RVs, caravans, and off-grid water systems. Its self-priming design and integrated 0.8L pressure tank deliver consistent water pressure on demand — no manual pumping required.

Built from durable, high-quality plastic, this pump is lightweight yet robust enough to handle the rigors of marine and mobile living. Whether you're outfitting a compact galley, a camper van kitchen, or a pressurized water line, this unit slots in efficiently thanks to its manageable footprint of just 20.5 × 12.7 × 11.6 cm.

Key Features

Constant Flow Technology: Integrated pressure tank maintains steady water flow without surges or drops
0.8L Pressure Tank: Built-in accumulator tank reduces pump cycling and extends motor life
Diaphragm Pump Design: Self-priming, dry-run capable, and suited for low-viscosity fluids
Compact & Lightweight: Easy to install in tight spaces on boats, RVs, and caravans
Durable Plastic Construction: Corrosion-resistant materials for marine and outdoor use
Versatile Application: Suitable for yachts, sailboats, motorhomes, campervans, and water storage equipment

Specifications

Material: Plastic
Tank Capacity: 0.8L
Dimensions: 20.5 × 12.7 × 11.6 cm (8.07 × 5 × 4.57 in)
Color: As shown in product images
Package Includes: 1 × Diaphragm Pump with Pressure Tank
Country of Origin: Made in China

What's in the Box?

1 × Micro Diaphragm Pressure Water Pump with 0.8L Tank

Please Note

Dimensions are manually measured — please allow a tolerance of 5–10 mm.
Colors may vary slightly due to monitor settings, lighting, and display calibration.
Product images are for reference; please refer to the written specifications for accurate sizing.

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For guidance on safe water systems in marine and recreational vehicle applications, visit the U.S. Consumer Product Safety Commission (CPSC) for relevant safety standards and consumer information.

Learn more: Pump

Frequently Asked Questions

Q: What is a diaphragm pressure water pump used for in an RV or yacht?

A: A diaphragm pressure water pump is used to move water from a storage tank to faucets, showers, or other outlets in an RV or yacht. The integrated 0.8L pressure tank stores pressurized water so the pump doesn't need to run constantly — it activates only when pressure drops below a set point, delivering smooth, consistent water flow on demand.

Q: Is this pump self-priming?

A: Yes, diaphragm pumps are inherently self-priming. They can draw water up from a tank without needing to be manually filled before operation, making installation and start-up straightforward in boats, campervans, and similar setups.

Q: What size space is needed to install this pump?

A: The pump measures 20.5 × 12.7 × 11.6 cm (approximately 8.07 × 5 × 4.57 inches), making it compact enough to fit in most under-sink or utility compartment spaces found in RVs and marine vessels. Please allow 5–10 mm measurement tolerance.

Q: Can this pump handle salt water or marine environments?

A: This pump is designed for marine-compatible use with freshwater systems on yachts and sailboats. The plastic construction is corrosion-resistant, making it suitable for humid marine environments. It is intended for low-viscosity, clean freshwater use.