Doser 2.2 Maxi - Stand-Alone (White)

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$335.92 $419.90

Discontinued by Bulk Reef Supply
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Perfect for 2-Part Dosing or Auto Water Changes

  • Built-In WiFi and myGHL Cloud Support
  • On-Board Manual Override Buttons
  • Adjustable Speed Brushless Motors
  • No Controller Required


The GHL Doser 2.2 Maxi, with a flow rate of up to 320 mL/minute, is ideal for automatic water changes, level control, and dosing in larger quantities. Thanks to the precise 24 V stepper motors, micro-doses of 0.1 mL are also possible. Robust mechanics and highly efficient stepper motors even allow continuous operation at constant speed. Perfect for operating reactors.


Simple & Smart Dosing

The GHL 2.2 Dosing System is one of the easiest dosing systems to get up and running. Control is easy from any smartphone or PC with the WiFi and USB connection. With the free GHL Connect App, the myGHL cloud service, or integrated web server, you can access your Doser from anywhere. Aside from being a reliable automated dosing solution, the Doser 2.2 Maxi can also keep track and control the liquid levels in your dosing containers, alerting you when the minimum level has been reached.


Download the GHL Connect App

Google Play Store

iTunes App Store


Brushless Stepper Motors

When it comes to precision electric motors, brushless stepper motors can regulate their speed and position giving them a huge leg up on other styles of dosing pumps. Designed to pump 4,226 gallons of water, Doser Maxi's are perfect as an automatic water change system or constant water exchange system, which can be pre-programmed or manually triggered as needed. Alternatively, the precision dosing makes the Maxi dosing pumps great for both two-part calcium and alkalinity dosing and additives like potassium, iodine, and other minor and trace elements that require small doses. 


Powerful & Precise Flow

Having speed control of the dosing head is critical for some additives like alkalinity solutions that can easily precipitate if added to saltwater too quickly. The variable flow rate dosing heads can push anywhere from 40-320 mL per minute and can be programmed through the GHL control software. The rate of flow can vary depending on the length of tubing and head height required. The max distance the GHL Doser Maxi can push or pull liquids is 50 feet of total length allowing you to put the dosing where you want it, and then route the tubing to your vessels and sump.


Control up to 16 Dosing Heads

You can mix-and-match GHL Doser Maxi SA pumps or the Doser 2.2 series for the ultimate dosing system. Connecting EXT dosers to the Stand-Alone pump lets you add additional pump heads while being able to manage the programming through a single interface. Control can be done locally through with the included USB cable or through the internet with the built-in WiFi or LAN connection.



Dimensions - 8.66" L x 5.9" W x 4.06" H

Max Dosing Flow - 320 mL/min

Tubing Size - 3/16 ID (not included)


What's Included?

GHL Doser Maxi - Stand-Alone (White)

24V Power Supply

USB Connection Cable

More Information
UPC 4260350289081
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