FASS VS AIRDOG

 Industrial Series Systems

Engineered for heavy-duty diesel applications, FASS Industrial Series Systems provide the fuel quality and protection required for high-demand environments. Built to support industrial equipment and Class 8 trucks, these filters deliver consistent flow and reliable performance under extreme conditions.


With advanced filtration down to 2 microns, they effectively remove water, air, and contaminants that can damage injectors and reduce efficiency. Designed for durability and extended service life, Industrial Series Systems help maintain cleaner fuel, smoother operation, and long-term system reliability.


Built in the USA and backed by FASS, this is filtration, built for the toughest jobs.

FASS vs. A Competitor: The Details Matter!

We often get asked how our Fuel Systems stack up against some of the other brands on the market, and the answer might surprise you.

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FASS Fuel Systems Vs The Competition

What are the biggest differences between FASS Fuel Systems and our closest competitor? Brad takes you step by step, and digs a little deeper into the big differences, comparing the New Titanium Signature Series 165 GPH FASS System and the competitions 165 GPH system.

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FASS Water Separator Vs. Competitor's Water Separator

Just how well does the FASS Extreme Water Separator stack up against a competitors? In this video, we contaminate 5 gallons of diesel fuel with 10,000 PPM of water. Then we test the water removal capabilities of the FASS Extreme Water Separator against a competitors water separator! Order yours today at the link below!

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FASS vs. AirDog's "Latest and greatest"

What comparisons would you like to see next? Thanks to the FASS R&D team, we're able to bring you real-world, data-supported testing of our competition's latest products!

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Results you can SEE

In this video, we use our water separation display to show the VAST difference in water filtration between FASS and our competition. In 3rd party testing, our Extreme Water Separator has been shown to remove over 99% of the water found in diesel fuel.

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Why Thousands Choose FASS

Air & Vapor Separation

  • Removes entrained air before it reaches injectors
  • Prevents cavitation and pressure drops
  • Ensures consistent combustion

Advanced Filtration & Water Separation

  • Filters down to 2 microns absolute
  • Removes over 99% of water
  • Protects injectors and pumps from contamination

Consistent Fuel Delivery

  • Maintains steady fuel pressure
  • Reduces strain on injection system
  • Supports stock to high-horsepower builds