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Rainwater Filters

Product Specs

Product Code: RHO-000-200

Price: $598.50

View Technical Drawing of Graf Minimax® Filter

Download Installation Manual

Graf Minimax® Filter

High efficiency, self-cleaning, below ground filtration system.

  • Over 95% yield
  • Self-cleaning filter
  • Max. 3,750 sq. ft.
  • Minimum height offset

The Minimax filter is designed for minimum height offset (0.4") between the inlet and outlet while maintaining maximum water yield.

A good choice for most residential installations.


  • Variable installation depth from 19-38 inches
  • Flush installation at ground level
  • Only 0.4" height offset between inlet and outlet
  • 0.35mm (.01") mesh filter
  • Lockable childproof cover
  • Telescopic riser (included), with natural looking lid, reduces cost, simplifies installation and produces professional looking results.