HDF Series 4 Disc Filters

  • Automatic self-cleaning disc filtration equipment with 4” valves and high density polyethylene manifolds.
  • Max. Flow: 3945 gpm (896 m³/h)


  • Surface and well water containing both organic (algae) and inorganic materials
    • Rivers, reservoirs, canals, and waste water
  • Suited for areas with or without electricity.
  • Well water containing light sand (<3 PPM) and other contaminants.
  • Ideal for high flow rate applications.



  • Rain Bird HDF systems helical action provides efficient cleaning.
  • Maximum filtering surface (463 in²/2984 cm²).
  • Manufactured from engineered plastics to resist rust and corrosion from chemicals and water.
  • All units are factory tested prior to shipment.
  • Disc elements provide depth filtration, not just surface filtration.
  • Units are pre-assembled with HDPE (High Density Polyethylene) manifold for easy installation.
  • Manual backflush cycle can be initiated from the controller.
  • Plastic backflush valves are lightweight and corrosion resistant.
  • Low maintenance and performs reliable backflush.
  • Filtration disc versatility (filtration grade can be easily changed).
  • Standard filtration options:
    • 100 micron (150 mesh)
    • 130 micron (120 mesh)
    • 400 micron (40 mesh)
  • Custom filtration options (available by special request):
    • 200 micron (75 mesh)
    • 50 micron



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