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Graf Optimax Filter External

Graf Optimax Filter External

Optimal cleaning performance with maximum water yield

More details...


£ 334.54

Tax excluded


  • External filter to clean the rainwater before the tank
  • Available for pedestrian loading and for vehicle loading
  • Provides over 95 % water yield
  • Low maintenance as it is self cleaning
  • Continuously variable installation depth of 580 - 1,050 mm (22.8 - 41.3") using the telescopic dome shaft
  • Minimal height offset (200 mm) between the inlet and outlet
  • Maximum roof surface area of 350 m² with connections DN 100 and 750 m² with DN 150. 
  • Very smooth surface and therefore max. self-cleaning, mesh wide 0.35 mm (0.01")

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