Neptune Systems COR-15 Intelligent Return Pump

The COR-15 is an intelligent, energy-efficient return pump designed to integrate seamlessly with Neptune Apex Controllers via a 1LINK or EB832 connection — eliminating bulky power bricks and simplifying cable management.

Designed for both internal and external use, the COR-15 offers fully customisable control via Apex Fusion, delivering silent operation, advanced flow monitoring, and built-in safety features.

Note: Requires an Apex Controller with a free 1LINK port. Not compatible as a standalone pump.

Key Features

• Up to 5,678 L/h (1500 GPH) maximum flow rate

• No external power supply — powered via 1LINK

• Quiet operation with BLDC motor and Vector Control

• Compatible with Apex A2 and A3 Series Controllers

• IQ-Level Technology for minimum/maximum flow tuning

• Integrated temperature monitoring and safety slow-down

• Full control via Apex Fusion — including feed modes, alarms, and status alerts

• Operates internally or externally

• Includes multiple outlet adapters for plumbing flexibility

Intelligent Apex Control

The COR-15 is built from the ground up to integrate with the Apex ecosystem, offering:

• Real-time feedback on flow rate, temperature, and power draw

• Configurable feed routines and minimum flow limits

• Alerts for overheating, abnormal power consumption, or failure

• Optional safety slow-down if internal temperature rises above safe levels

Setup is plug-and-play. Once connected via a 1LINK port, configuration takes only a few steps in Apex Fusion.

IQ-Level Technology

Set custom minimum and maximum speed limits based on your aquarium’s plumbing. This feature:

• Prevents over-pressuring closed systems

• Enables fine control during feeding or maintenance

• Helps maintain stable, predictable water movement

Ultra Quiet Operation

Utilising Vector Control BLDC motor technology, the COR-15 delivers high performance with minimal vibration and sound. At full output, it consumes less than 50W, making it one of the most energy-efficient return pumps in its class.

Safety & Operational Feedback

Via Apex Fusion, you can:

• View live system vitals (temperature, flow, watts)

• Set alarms for irregular readings

• Automate responses to unsafe conditions
  If the pump exceeds safe internal temperatures, it will automatically reduce its speed until normal levels are restored — allowing time for user intervention before any damage occurs.

Plumbing Compatibility

The COR-15 includes multiple output options:

• ¾” slip fitting

• 1” slip fitting

• 1.25” union (slip to BSPP)
  Designed for maximum compatibility with standard PVC plumbing sizes commonly used in reef tanks.

Specifications

• Pump Dimensions: 9.8 cm (W) x 12.4 cm (H) x 15.9 cm (D)

• Driver Dimensions: 7.6 cm (W) x 10.2 cm (H) x 2.5 cm (D)

• Max Flow Rate: 5,678 L/h (1500 GPH)

• Max Head Height: 4.3 m

• Input Size: 1″ slip PVC

• Output Size: ¾” slip PVC or 1¼” BSPP Union

• Power Consumption: <50W (via 1LINK at 24V DC)

What’s Included

• 1x COR-15 Pump Body

• 1x COR Driver Controller

• 1x 1.25” Slip-to-BSPP PVC Union

• 1x 1” Slip Fitting

• 1x ¾” Slip Fitting

• 1x 4 m 1LINK Cable

  Requires a Neptune Apex Controller with an available 1LINK port. Not compatible with standard wall outlets.