Simple & Logical

DQTube is a new category of in-tank diesel filter that captures and removes water, dirt, dust, rust, bacteria and other contaminants from diesel/biodiesel directly in the fuel tank to stop accumulation, improve efficiency as well as reduce wear and deposits in the fuel system, injectors & engine.

DQTube is a new category of in-tank diesel filter for trucks, tractors, boats & other diesel machines that optimizes fuel quality & tank health to maximize equipment performance

The unique advantages of DQTube In-Tank Diesel Filtration:

  • DQTube utilizes the same technology that is used to purify & recover off-spec diesel for fuel companies.  
  • DQTube performs as a water separator, particle filter and tank cleaner all in one.
  • DQTube does its work directly in the fuel tank to prevent tank pollution, fuel degradation and reduce fuel filter wash-through to the fuel pump, injectors & engine. (Stopping particles in the tank is the #1 most effective way to reduce engine & injector deposits.)
  • DQTube captures moisture & contaminants in the tank before it can accumulate, degrade the fuel or damage the tank. (All tanks breathe and ingest moisture & dust)
  • DQTube has more capacity for both water & particles than most filters & separators.
  • DQTube is faster & easier to change than inline filters.
  • DQTube reduces or eliminates the need for fuel additives & biocides.
  • DQTube captures water before it can stimulate growth of bacteria & microbes.     (Bacteria is naturally occurring in diesel and moisture allows it to multiply.  Bacteria eats diesel and  causes acidic secretions which degrade fuel quality and corrode tank linings.)

DQTube is an everyday, leave-in, in-tank filter for diesel tanks

The design of DQTube maximizes the ability for the Diesel Quality Technology to capture and hold water & particles removed from the fuel and the fuel tank.

  • Trucks, Buses & Fleets
  • Tractors
  • Workboats & Yachts
  • Generators
  • Mining & Construction Equipment
  • Cranes
  • Boom & Scissor Lifts
  • Rental Equipment
  • Storage Tanks & Day Tanks
  • Other Diesel Machines

DQTube is a standard product for trucks and diesel equipment that remains in the fuel tank to protect against moisture & particle accumulation as well as prevent bacteria-growth and corrosion.

DQTube Standard

4.5cm diameter/30cm length

400ml water capture capacity

For trucks, tractors, generators, boats, lifts, small storage tanks and other diesel equipment

DQTube offers amazing value by giving diesel operators the ability to filter & remove water, dirt and dust from fuel and the tank from directly inside the fuel tank.

Other Sizes Available:

DQTube MT

7.5cm diameter/32cm length

1000ml water capture capacity

For storage tanks, boats and diesel equipment with 4 inch+ openings

DQTube LT

8.5cm diameter/105cm length

5000ml water capture capacity

For large storage tanks, fuel stations, and big boats with 4 inch+ openings

DQTube XL

12.5cm diameter/110cm length

12000ml water capture capacity

For ships and large fuel tanks with manhole openings

DQTube removes moisture & particles from diesel from directly inside the fuel tank

Better Fuel Quality

Better Tank Conditions

Improved Equipment Performance

Better Environment

DQTube: Powered by Diesel Quality Technology (DQT)

Customer photos of DQTube 1.0 show how well DQTube captures water and pollution from the fuel tank.  100% of the contamination that DQTube captures in the tank will not get into your fuel system.

Independent laboratory & fuel company testing prove that Diesel Quality Technology (DQT) reduces water-content in diesels & biodiesel with 100% efficacy and can reduce bound-water content to as low as 0.003% (nearly jet fuel levels), 70% below EN590 standards for diesel.  

HOW DQTube WORKS:

  • DQTube captures condensation from the vent as well as water ingress from fill-ups & leaks to segregate it from the tank environment.


  • DQTube also captures dirt, dust, rust, bacteria and other particles that enter the tank through the vent, fill or iwere in the tank prior to DQTube.


  • DQTube extracts emulsified, suspended and other forms of bound water from fuel to maximize the fuel's combustion power, optimize fuel efficiency, reduce wear and prevent fuel degradation.


  • DQTube reduces in-line filter changes and greatly reduces or completely eliminates the need for caustic fuel additives & biocides.

About us:

Our philosophy is to eliminate things that make problems. If we remove water and particles at the source (the fuel tank), before it goes into the fuel system; we can make a signifcant % of wear, filter changes and common diesel problems not happen. This is true for normal, everyday fuel contamination that wears equipment & blocks filters but also for big problems that break equipment and budgets.

As DQTube Engineering Director says, “We never have to fix the problems that never happen. In my career working with the marine industry, the Danish Navy and other diesel operations; I have always sought preventative solutions because it is most cost-effective, it keeps equipment running at optimal performance and makes sure downtime does not interrupt business.”

Our solutions target the source of problems; which is the fuel tank. The fuel tank is where delivery is taken, where fuel is stored, where contamination accumulates and where problems develop.  The fuel tank is also the first place for operators to control their operational outcomes. DQTube gives diesel operators the power to fix delivery inconsistencies, improve their fuel quality and protect their tanks from condensation, water-ingress, corrosion and bacteria-growth. DQTube also reduces the need for fuel polishing, fuel additives, biocides & other “fuel medicines” that have damaging side-effects.

See more about our industrial solutions at www.dieselqt.com

DQTube International Presentations:

DQTube - Filtro diésel en el depósito

DQTube - Filtrasi Diesel Dalam Tangki

DQTube - Фильтрация дизельного топлива в баке

DQTube - Φιλτράρισμα ντίζελ στη δεξαμενή

DQTube - Filtro de gasóleo no depósito

DQTube - Dieselfiltration im Tank

DQTube - Filtru de motorină în rezervor

DQTube - Dieselfiltrering i tanken

DQTube - Filtro gasolio nel serbatoio

DQTube - Filtration du diesel dans le réservoir

DQTube - Dízel üzemanyag szűrő a tartályban

DQTube - Filtracja oleju napędowego w zbiorniku