Removes Dirt, Water, and Varnish from Oil Systems

Unlock the potential in your equipment. Sign up today for a free 3-month trial of a CJC® HDU 15/12 Fine Filtration system.

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Black oil filter with drip pan.

*Enjoy a free 3-month trial of the 15/12 unit with the purchase of filter media. Shipping costs are not included.

Struggles with Oil Contamination?

Problems with dirt, water, and varnish can be a nightmare.

Eliminate Dirt, Water & Varnish with CJC® Offline Filtration

Protect your equipment and extend oil life — try the HDU 15/12 free for 3 months.

Enjoy a free 3-month trial of the 15/12 unit with the purchase of filter media. Shipping costs are not included.

This Little Filter Solves Big Problems

The HDU 15/12 is a compact, low-cost solution to many applications where oil and fuel contamination have a major impact on the bottom line.

  • Light Weight
  • Low Cost
  • Easy to Install
  • Multiple Applications
  • Smaller Oil Volumes
  • Short Lead Times

Don’t Drain It, Maintain It with CJC

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Black filter housing attached to diesel fuel generator

“I’ve worked in several industries, oil sands, pulp and paper, power plants, which have purchased, collectively, over 250 of these units. They’re practically bulletproof, they’re so durable. They are so compact and easy to use, and it’s always cheaper than an oil change”

-Brian Harris, Triboro Consulting

CJC Red yield logo.

Klassen Advanced Filtration

Canadian distributor for C.C.Jensen oil filtration products since 1993. 

Frequently Asked Questions

“What happens after the trial?”
Once your trial period concludes, you’ll have the opportunity to assess the remarkable benefits that the CJC HDU 15/12 has delivered, allowing you to make an informed decision on continuing with our filtration solution; our dedicated team is here to guide you through the next steps, ensuring your equipment remains protected and your oil systems clean, so you can focus on what really matters—keeping your operations running smoothly and efficiently.
"Do I have to return the unit?"

At the end of the 3-month trial, you can choose to purchase the unit, continue with our rental program, or return it if it doesn’t meet your needs.

“What industries is this suitable for?”
The CJC HDU 15/12 is a versatile filtration solution ideal for a wide range of industries including manufacturing, transportation, agriculture, and marine applications, where maintaining clean oil is crucial for optimal equipment performance; its ability to effectively remove contaminants enhances productivity, reduces costly downtime, and extends the life of your machinery, making it an indispensable asset in any operation that relies on hydraulic or lubrication systems to keep things running smoothly and efficiently.
"What volume of oil does the 15/12 filter?"

The CJC® 15/12 Filter Insert (typically used in the CJC Fine Filter HDU 15/12) is designed for smaller systems and is capable of filtering oil volumes up to approximately 100-500 litres, depending on the application and system cleanliness requirements.

"What applications is the filter suitable for?"

The CJC® HDU 15/12 Fine Filter is best suited for small to medium-sized oil systems where high cleanliness and water removal are essential — especially in low-flow, continuous offline filtration setups.

Hydraulic Systems

  • Small presses

  • Injection molding machines

  • Hydraulic power units (HPUs)

  • Compact mobile or stationary equipment

  • Servo or proportional valve protection

Why it works: Excellent at removing fine particles and water that degrade system performance and cause valve sticking or premature wear.

Gearboxes

  • Wind turbine gearboxes

  • Conveyor gearboxes

  • Agitator gearboxes in processing plants

  • Marine gearbox systems

Why it works: Gearboxes often suffer from contamination and oxidation; the HDU 15/12 can run continuously to clean oil slowly without interrupting operation.

Compressors and Vacuum Pumps

  • Small rotary screw compressors

  • Vacuum pump systems in industrial settings

Why it works: Removes varnish precursors and water that can damage compressor internals.

Diesel Fuels & Light Lubricants

  • Fuel polishing in small diesel tanks

  • Lube oil in backup generators or small turbines

Why it works: Excellent at removing fine sediment, sludge, and water — even from fuel.

Marine & Offshore

  • Hydraulic systems on small vessels

  • Steering gear oil

  • Winch and crane systems

Why it works: Compact size and efficient water removal make it ideal for moisture-prone environments.

Black 15/12 Fine Filter with black hoses

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