The next level of high-flow dosing has arrived: The GHL Doser 3 Maxi combines powerful performance with silent operation – perfect for automatic water changes, ATO, and large-volume dosing.


Delivers up to 350 mL/min, handles precise doses down to 0.1 mL, supports continuous operation, and is engineered to meet demanding industry standards.

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What’s new?


  • SilentDrive – silent dosing with advanced motor driver technology
  • LAN & WiFi & USB connectivity – flexible integration
  • Easy Over-the-air firmware updates




Available in three versions


  • Standalone (SA) – All-in-one controller
  • Extension (EXT) – Add pumps to your setup
  • Cost saving SA + EXT Set – 4 pumps, ready to run


? Pre-order promotion – valid until Sep. 29, 2025


  • SA: €369.90 (reg. €429.90)
  • EXT: €329.90 (reg. €379.90)
  • SA + EXT Set: 4 high-flow pumps for just €679.00 (reg. €759.90)!


? Shipping starts October 13, 2025 from Germany


Learn more about GHL Doser 3 Maxi

Info about this promotion


PREORDER NOW:
GHL Germany Store
GHL USA Store

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