Mxmoonant 12V DC Automatic Water Pump, Booster Diaphragm Pump, 40Psi, 2.8Bar, 132W, 17Lpm, Self Priming, Overload Protec
£63.32 inc. VAT (£52.77 ex. VAT)
Also £75.99 on Amazon — You save £12.67
- Delivers up to 17L/min for faster tank filling, rinsing and washdown jobs.
- Self-priming design starts pumping without manual priming, saving setup time.
- 40 PSI pressure provides steady flow for taps, sprayers and caravan water systems.
- Built-in overload protection helps prevent motor damage during heavy or interrupted use.
Why Choose DC Autom
Dependable Off-Grid Water Pressure
Experience consistent water flow wherever you are with the DC Autom self priming water pump. Designed to outperform standard generic units, this robust pump delivers an impressive 17L/min flow rate at 40 PSI (2.8 bar). Whether you are upgrading a tired caravan water system or installing a new boat washdown setup, this pump ensures you never have to settle for a weak trickle again.
Smart Automatic Operation
Unlike manual pumps that require constant attention, our 40 psi diaphragm pump features a highly responsive built-in pressure switch. It automatically activates the moment you open a tap or nozzle and shuts off instantly when closed. Combined with integrated thermal overload protection, it guarantees safe, reliable daily running without the complexity or vulnerability of a submersible system.
Versatile, Quiet & Built to Last
Whether you need a dependable caravan water pressure pump or a garden irrigation booster pump, this 12V unit is built for the job. The four-chamber diaphragm design and anti-vibration rubber feet significantly reduce operational noise, providing a smooth, quiet flow that rivals more expensive competitor brands. Built with corrosion-resistant materials, it is ready to tackle the damp, demanding conditions of UK outdoor and marine life.
Technical Specifications
- Voltage
- 12V DC
- Flow Rate
- 17 Litres/Min (4.5 GPM)
- Max Pressure
- 40 PSI (2.8 Bar)
- Power Consumption
- 132W (Max 11A)
- Priming Capabilities
- 3m Suction Lift
- Inlet/Outlet Ports
- 1/2" (13mm) Hose Barb
- Certifications
- CE, UKCA, RoHS
- Weight
- 2.4 kg
Price Comparison
See how our price compares across UK retailers
| Retailer | Price | Delivery | Warranty |
|---|---|---|---|
| DC Autom UKBEST | £63.32 | FREE | 12 months |
| Amazon UK | £75.99 | £4.99 | 12 months |
| eBay (est.) | £89.67 | Varies | Seller dependent |
| High Street RRP | £97.27 | N/A | Varies |
Prices checked 17 July 2026. Prices may vary.
Customer Reviews
Bought this as a boat freshwater pump for our narrowboat. The self-priming works perfectly right out of the box, and the pressure is fantastic for washing down the deck. Much quieter than our old unit.
An excellent caravan water pressure pump. Upgraded our old 7L/min pump to this 17L/min beast and the difference in the shower is night and day. Highly recommend for any motorhome owner.
I use this as a garden irrigation booster pump on my off-grid smallholding. It runs effortlessly off a solar-charged 12V battery and provides steady pressure to all my raised beds.
Great 40 psi diaphragm pump, delivers exactly the flow promised. My only minor gripe is that the power lead tails could be a bit longer for easier wiring, but it was simple enough to extend them.
I was looking to buy 12v diaphragm water pump online and compared this to a Shurflo. Honestly, for the price, this is incredible value. The automatic shut-off is instant and it feels very solidly built.
Using this in my mobile valeting van. The 17 lpm flow is brilliant for filling buckets quickly and running my low-pressure rinse hose. Good piece of kit, does exactly what I need.
Fantastic automatic dc water pump. Delivery was incredibly fast to Wales, and the build quality exceeded my expectations. The rubber feet really do stop the vibration noise transferring to the caravan walls.