Vertical Pressure Filter


Filtration of Smaller Flows with Vertical Pressure Filters

Vertical Pressure Filters consist of a pressure vessel with an overdrain system for distribution of influent water and collection of backwash waste.

Vertical Pressure Filters allow you to:

  • Maintain system pressure through the treatment process
  • Eliminate backwash supply pumps
  • Utilize several media configurations
  • Isolate individual filtration vessels

Vertical Pressure Filters provide granular media treatment in an enclosed pressure vessel. Multiple vessels can be used to allow operating flexibility and backwashing from in-service cells. Under 1 MGD (4 MLD), they are more economical than horizontal pressure filters.


  • Enclosed filtration system
  • Water only or air scour backwash
  • Underdrains can be joined
  • Multiple vessels in a single system possible


  • Line pressure maintained
  • Re-pumping after filtration eliminated
  • Provides most effective backwash for a specific system
  • Allows backwashing from in-service cells
  • Reduced backwash flow rate
  • Flexibility of operation


Common applications include iron, manganese and arsenic removal from groundwater and industrial process water treatment. Vessel design and manufacturing includes non-code or ASME code with stamp for a wide range of operating pressures.

Manganese ANTHRA/SAND™ media, when used in these filters, provides enhanced manganese removal at a cost lower than manganese greensand.