Neptune Systems DOS QuietDrive Dosing Pump

The DŌS QuietDrive (QD) is an upgraded, ultra-quiet dosing system designed to work seamlessly with Apex A2 and A3 Series Controllers. Retaining the same reliable DŌS hardware trusted by reefers, the QuietDrive introduces significant improvements in noise reduction, continuous operation modes, and user-friendly upgrades.

Whether you’re dosing two-part additives, performing automatic water changes, or micro-dosing trace elements, the DŌS QD delivers precision, automation, and peace of mind — all via the Apex Fusion cloud interface.

Key Features

• EcoTech QuietDrive technology for quieter operation

• Continuous duty mode at low speeds (up to 25 mL/min)

• Backlit, water-resistant priming buttons for easier use in dark spaces

• Powered via 1LINK (no external power supply required)

• Redesigned dark grey finish to match Neptune’s Sky LED aesthetic

• Compatible with Apex A2 and A3 series

• Seamless integration with Apex Fusion for scheduling, dosing control, and calibration

What’s New with QuietDrive?

Reduced Noise
QuietDrive technology significantly reduces operational noise:

• Up to 400% quieter at higher flow rates (60 / 125 / 250 mL/min)

• Up to 200% quieter at low flow rates (7 / 12 / 25 mL/min)

Continuous Operation Support
At speeds up to 25 mL/min, the DŌS QD can run continuously — ideal for stable additive delivery or ongoing water changes.

Improved Priming Controls
Backlit “L” and “R” buttons are now water-resistant, allowing easier, safer priming — even with wet hands or inside a cabinet.

1LINK Connectivity
Eliminates the need for a separate power supply. The included 1LINK cable connects directly to your EB832 or 1LINK module, reducing cord clutter and freeing up power outlets.

Updated Aesthetic
Features a matte dark grey finish, consistent with newer Neptune hardware like the Sky LED.

Use Cases

Two-Part Dosing
Schedule and deliver precise doses of calcium and alkalinity with full control over timing, frequency, and quantity.

Automatic Water Changes
Perform regular water changes without lifting a bucket. Set your schedule in Apex Fusion and the DŌS handles both the removal of old water and addition of new water.

• Capable of up to 113 litres (30 gallons) per day

• Up to 45 litres (12 gallons) per day in Quiet Mode

Micro-Dosing
Perfect for dosing trace additives or carbon sources (e.g. vodka, amino acids). The stepper motor allows micro-dosing as small as 0.1 mL, with unmatched precision and consistency.

Easy Maintenance

Replacing pump heads and tubing is straightforward:

• No tools required — simply squeeze and remove the old head

• Reattach tubing to the new head and snap it back on

• No screws or disassembly needed

DDR Compatible (Sold Separately)

Connect the DŌS to the DDR Dual Dosing Reservoir (sold separately). Each reservoir holds 2 litres and features built-in optical sensors to alert you when fluid levels run low. Ideal for automated two-part dosing setups.

Specifications

• Requires: Apex A2 or A3 Series Controller

• Dimensions: 24.1 cm (L) x 12.7 cm (H) x 12.7 cm (W)

• Max Lift Height: 7.3 m

• Max Suction Height: 7.3 m

• Flow Rate: 0.1 mL to 250 mL/min (variable)

• Power Input: 24V DC (via 1LINK)

What’s Included

• 1x DŌS QuietDrive Dosing Pump

• 1x 1LINK Cable

• 4 metres of 6 mm Dosing Tubing

• 1x 50 mL Graduated Cylinder for Calibration

Note: Requires an Apex A2 or A3 Series Controller to operate. DDR Dual Reservoir sold separately.