Portable fuel polishing systems starting at $2499


Equipment manufacturers specify that ZERO free water must reach the engine.

Zero water is not realistic. All diesel contains some percentage of water. The most important thing is to keep the water below its saturation point so that it stays dissolved rather than entering your equipment as free water.

Before you buy the competition ask one simple question “How do you get the water out?”

Dieselcraft has built water separators for 20 years. We know what is needed and what works. I would not assume others are as knowledgeable as we are.

Saturation points vary from roughly 50 ppm to 1800 ppm based on temperature and on the petro-
diesel/biodiesel polishing fuel on boatratio. When water content reaches the saturation point, the excess water will fall out as free water. Your diesel may hold 90 ppm dissolved water when warm, but only 60 ppm when it cools down due to colder weather. The 30 ppm difference falls out as free water and settles to the bottom of the tank.

Knowing the water content is important and getting rid of it even more so. (To test fuel see our Fuel Products Page)

15 GPM Budget Portable Diesel Filter System
Model FPS-HC15 120 volt

  • 900GPH
  • 115 volt single phase 60 Hz
  • Dimensions – 23” X 23” X27” tall
  • Removes over 99% of water
  • Absolute particle filtration to10 microns
  • Epoxy powder coated with rubber feet
  • Two12 foot suction and discharge anti-static hoses included with cam lock fittings
  • 1″ NPT male thread and Fuel Hose Swivel for Fuel Nozzle-Hose 360 Rotating Connector.
  • Sturdy “T” handle for one or two person carry.

Dry Weight 45 pounds


14 GPM Portable Diesel Filter System
Model FPSP14-12V

  • 12 volt DC
  • 30 minute duty cycle
  • On for 420 Gallons then off for 30 minutes
  • Two Stage Filtration
  • Removes water and solids
  • Includes Manual Fueling Nozzle and two 13 ft Hoses

$1795 Plus Shipping


400 Gallon Per Hour 120 volt
Low Cost Fuel Polishing to 2 microns.
Model FPS-400

Dieselcraft’s FPS-400 is the only low cost, modular system that can be ordered to fit your budget that will remover 99% of the water and large particles in fuel with filter-less technology and then spin-on 2 micron absolute filtration.

The base system consists of a hand truck frame holding a Dieselcraft Fuel Purifier, 400 GPH 120 volt pump and 10 micron filter with 20 feet of hose, a magnetic fuel conditioner, digital flow meter and a water alarm. One can add a digital timer if desired.

1800 Gallons Per Hour Vane Pump Driven Fuel Polishing
Model FPS-30 Diesel Fuel Polishing System to 2 Microns

  • 1800 GPH
  • 115/230 volt single phase 50 or 60 Hz
  • Dimensions – 32 x18 x 47” tall
  • Removes over 99% of water
    Anti-asphaltene fuel conditioning
    Absolute particle filtration to 2 microns
    Dual Filtration allows no stopping to
    change filters.
    Epoxy powder coated.
    2 each 25 foot suction and discharge hoses
    included with cam lock fittings.
    Digital flow meter.
    Semi-pneumatic tires.
  • Weight 220 lbs.

Compact and Economical Diesel Fuel Polishing and Water Removal
Model FPS-CP-3 420 Gallons per hour

115 volt motor
economical fuel polishing and fuel water removal
Filter-less Purifier to removes over 99% of water and large contamination in fuel without filters.

Water/Debris alarm to indicate time to drain the purifier.

2 each 10 foot suction and discharge hoses included.

The FPS-CP-3 is a basic tank cleaning system designed for the transfer, water removal, polishing and/or re-circulating of diesel fuel in storage tanks in ground as well as above ground. Also for boats, generators and trucks.

The base system utilizes a 7 gallon per minute continuous duty pump in conjunction with a Dieselcraft 5×32 purifier plus and two 10 foot hoses.

Options: Digital Fuel Flow Meter.

 Diesel Fuel and Gasoline Tank Cleaning
Model FPS-PW to 3000 Gallons per hour

• 115 volt motor
• 30-50 GPM
• Pressure Cleans the tank walls.
• 2 each 10 foot suction and discharge hoses included.
• Portable..