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Joey Herndon
Business Development

Upgrade your sand filter to the Forty-X™ disc filter

Increase filtration capacity and performance in existing footprint

The Forty-X™​ Disc Filter is a high-rate tertiary filter that requires a fraction of the footprint required by traditional sand filters. Designed with unique woven media filter panels, the Forty-X Disc Filter uses an inside-out flow pattern that reduces backwash cycles and energy demand leading to lower lifecycle costs.

For applications requiring a higher solids loading capacity and greater hydraulic throughput, the Forty-X™ Disc Filter Armor series is recommended.  This innovative high-rate filtration device combines outside-in and inside-out filtration technologies within one filtration unit.  Influent water flows through an integrated pre-screen (outside-in) to woven stainless steel disc filter panels (inside-out), providing an effective and robust solution for challenging water and wastewater filtration applications.

The modular design of both the Forty-X Disc Filter and Forty-X Disc Filter Armor series provides a flexible and dependable filtration solution for tertiary filtration, municipal and industrial reuse/recovery, product recovery, process water filtration, and conventional filter retrofit applications.   


 application & installation options

  • Expand filtration capacity
  • Meet stricter effluent limits
  • Retrofit traveling bridge filters
  • Retrofit deep bed sand filters
  • Retrofit into chlorination basins
  • Retrofit into rectangular clarifiers

 Forty-X™ Disc Filter Advantages

  • 40% more filtration capacity when compared to flat panel designs
  • Drop-in simplicity with little or no structural modifications
  • Can accommodate existing hydraulic profile
  • Increases capacity of an existing sand filter up to three times
  • Easy operation and maintenance
  • Suitable for water reuse
  • Title 22 approved


Forty-X disc filters may be covered by one of more of the following patents: 7,597,805; 7,972,508; 8,118,175; 8,409,436; 8,801,929; 8,808,542; 8,961,785

 view this short video Upgrade your sand filter to the Forty-X™ disc filter