GHL Doser Maxi Stand Alone

As with all GHL products, the GHL Doser Maxi is built on the proven framework that earned GHL its global recognition for ultimate reliability and performance. GHL Doser Maxi was designed for hobbyists and professionals who look for a reliable way to transport larger volumes of water. With two brushless stepper motors rated for max 350ml/min, the Maxi doser is perfect for ATO, AWC, and more.

Perfect for AWC and Continuous-use

Tired of lugging those buckets around?
Take the work out of manual water changes and let the GHL Doser Maxi do it for you. Conveniently schedule automatic water changes or trigger them as-needed.

Need to continuously do larger water changes?
No problem. Our brushless stepper motors are built and ready to withstand larger volume water changes. As with other peristaltic pumps which require a cool-down period, the Doser Maxi’s stepper motors can be run continuously for longer periods without needing a cooling period. For example, you can transport water for a water change at one time without needing a cooling period. Pumps are suitable for moving approximately 16,000 Liters (4,226 gal) of water.

No controller required!

We are firm believers in giving reefers the option to use our dosers without having to go out and buy a separate controller just to run it. For that reason, the GHL Doser Maxi will be offered as a Standalone or Slave model.
  • The Maxi Standalone doser is perfect for those who do not own a ProfiLux 3, ProfiLux 4, Doser 2.1 SA or Doser 2 SA.
  • The Maxi Slave doser seamlessly ties into an existing Doser 2.0 / 2.1 SA or ProfiLux 3 / 4 eco-system.

Backwards compatibility

Have a ProfiLux 3 or Doser 2.0 SA?
Don’t worry we didn’t forget about you! ProfiLux 3 and Doser 2.0 SA owners can also add one or several Maxi dosers to their system and benefit from all that the product has to offer.

Product flexibility like no other

Already have a Doser 2.1 SA or Slave?
No problem! The GHL Doser 2.1 and Maxi can be combined, Standalone and Slave in any combination. Same rules apply to those who have a ProfiLux 3 or 4 controller; all slave pumps can be controlled.

Standalone Maxi dosers can easily be converted to operate as a slave unit.

  • GHL Doser Maxi SA
  • 24V power supply


    With the exception of the larger motors, GHL Doser maxi includes many of the familiar features found on the GHL Doser 2.1 models.

    • Built-in WiFi and myGHL cloud support (Standalone only)

    • Built-in Level ports for float and/or optical sensors (Standalone only)

    • Quiet brushless motors

    • Speed-adjustable motors (Maxi doser – Up to 320ml/min)

    • On-board manual override buttons

    • Magnetic Stirrer ports

    • Fluid monitoring


    The GHL Maxi Stand Alone has integrated control electronics and works on its own.

    Its 24V stepper motor allow precise dosing. The connection can be made via WiFi, LAN, or USB.

    Slave dosers can be connected to the GHL Doser Maxi SA, whereby it is possible to mix GHL Doser 2 (2.1) Slave and GHL Doser Maxi Slave.
    In total, up to 16 pumps can be controlled.The ProfiLux Aquatic Bus provides reliable and interference-free data transfer, even over long distances up to 100 m (300 ft.).


    8.66″ L x 5.9″ W x 4.06″ (w/out pumps)