The Neptune SystemsCOR-15 and COR-20 are intelligent, variable speed DC return pumps for aquariums. The COR-15 pushes up to 1,500 GPH (5,700 LPH) and runs on a 1LINK connection, while the larger COR-20 pushes up to 2,000 GPH (7,570 LPH) and uses an AquaBus connection with an independent power supply.
Key Differences: COR 15 - 20
Flow Rate:
COR-15: Up to 1,500 GPH (5,700 LPH)
COr-20: Up to 2,000 GPH (7,570 LPH)
Apex Connection & Power:
COR-15: Connects directly to a 1LINK port (on an EnergyBar 832 or 1LINK Module) for both power and communication, eliminating external power bricks.
COR-20: Connects via an AquaBus cable for communication and uses a separate dedicated power adapter plugged into a standard wall outlet/DC jack.
Common Features: Both feature IQ-Level flow calibration, whisper-drive technology, real-time Apex Fusion cloud monitoring (wattage, temperature, flow), and safety shut-downs.