Home/Shop/12V DC 20 GPH Watermaker
12V DC 20 GPH Watermaker

12V DC 20 GPH Watermaker

$3,300
Sales open Fall 2026

Runs straight off your house bank with no inverter in between, so none of your power is lost to conversion. Our most efficient path to fresh water, driven by a USA-made LEESON motor.

Output
20 gallons per hour
Power
12V DC, straight from the house bank
Power draw
~600W depending on ocean conditions
High-pressure pump
AR nickel-plated triplex pump paired with a USA-made LEESON 12V DC motor
Membrane housing
Fiberglass housing with 316 hardware, rated for 800+ PSI
Membrane
FilmTec SW30-2540 RO membrane
Boost pump
12V / 24V DC
Prefiltration
10" 20 µm and 5 µm pleated prefilters
Fresh-water flush
CTO carbon filter with auto rinse

What you get

Every Vectech watermaker comes with everything you need to make fresh water. We take pride in offering the highest-quality parts at a fraction of the cost of other watermakers on the market. It’s a simple system designed for DIY installation, and it can be serviced anywhere in the world with off-the-shelf parts. Once you own a Vectech watermaker, you can buy spare and replacement parts from us at wholesale prices for life.

Please note: A sea strainer isn’t included. The boost pump is submersible, so you can drop it overboard while the boat is stationary or plumb it into your existing strainer. Every watermaker ships with the membranes pre-installed in their housings, and a control panel comes mounted on the membrane housing by default. An optional remote control panel and a 3-way diverter valve are also available.

What’s included

  • 12V/24V DC boost pump
  • 3× 10" filter housings (20 µm, 5 µm, and CTO carbon)
  • Check valves and auto-flush system
  • AR nickel-plated high-pressure pump
  • USA-made LEESON 12V DC motor
  • 1× fiberglass membrane housing
  • 1× FilmTec SW30-2540 membrane
  • 316 stainless steel control valve
  • All 316 stainless steel and plastic fittings
  • 6 ft of high-pressure hose and 15 ft of low-pressure hose
  • 316 stainless steel color-coded gauges

More from the Shop

Back to the shop
20 GPH AC Watermaker

20 GPH AC Watermaker

$2,500

Our entry system runs on 120V/240V, 50 or 60 Hz, and can easily be powered by an inverter.

View Product
40 GPH AC Watermaker

40 GPH AC Watermaker

$3,400

Double the output for bigger tanks and thirstier crews.

View Product
Spare Parts

Spare Parts

Priced per part

Filters, pumps, membranes, and 316 stainless NPT fittings.

View Product

Reserve the 12V DC 20 GPH Watermaker

Checkout opens Fall 2026. Email us or message us on Instagram with your name, boat, and location, and you'll be first in line when sales open.

Email
VectechUSA@gmail.com
Instagram
@vectechwatermaker Message us

Ask about the 12V DC 20 GPH Watermaker

We're happy to talk pumps, power draw, or which system fits your boat.

Email
VectechUSA@gmail.com
Instagram
@vectechwatermaker Message us