SKU: 51846726261

Neptune COR-20 Intelligent Return Pump (2000 GPH)

Sale price$4261.95 Regular price$4735.50
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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24

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Description

Neptune COR-20 Intelligent Return Pump (2000 GPH)Neptune COR 20 Intelligent Return Pump (2000 GPH) Neptune COR 20 Intelligent Return Pump (2000 GPH) is used to efficiently circulate water in aquariums, with the capability to operate both as a standalone unit or in conjunction with an Apex controller for advanced control features. Use With or Without an Apex Controller! The intelligent Neptune COR 20 Return Pump is easily the smartest pump available. Directly connect to any Apex controller through an

Neptune COR-20 Intelligent Return Pump (2000 GPH)

Neptune COR-20 Intelligent Return Pump (2000 GPH) is used to efficiently circulate water in aquariums, with the capability to operate both as a standalone unit or in conjunction with an Apex controller for advanced control features.

Use With or Without an Apex Controller!

The intelligent Neptune COR-20 Return Pump is easily the smartest pump available. Directly connect to any Apex controller through an Aquabus Port, but if you do not have a controller, don't worry, you don't need one! The COR-20 is capable of stand-alone operation, but also offers advanced control features that can be found by using the Apex Fusion Cloud Software (Apex required). Add a COR pump to your system today to see the difference.

  • IQ-Level Technology
  • Energy Efficient
  • Extremely Quiet
  • AquaBus Communication Connection
  • Temperature Monitoring
  • Up to 2000 GPH
  • Internal or External

Don't have an Apex? No Problem!

The COR-20 can be connected to an Apex, but it can also be used in a standalone method, where the controller lets you have simple control over the pump like, increasing and decreasing the speed as desired. Connecting the COR-20 to an Apex Controller can unlock much more potential!

Advanced Control

The COR pumps were built from the ground up with control in mind. Have power over everything including the CORs output percentage, real-time operational feedback, compared feed routines, pump status can all be monitored and controlled with Apex Fusion. Once the COR pump is plugged into an open Aquabus port, and after a couple button presses, you can set the pumps flow rate and feed mode settings. By enabling IQ-Level, you can set the min and max flow rates for your aquarium. 

Up to 2000GPH

The powerful COR-20 can push up to 2000 gallons per hour with an incredibly efficient head-loss curve. Each pump comes with multiple different output fittings that let you adapt the COR pumps output to match your reef tanks current plumbing size. It is suggested to use the largest 1.25" Union that is included, but it is totally fine to use the other 0.75" or 1.0" adapters if needed. 

IQ-Level Technology

Because not all aquariums are alike, Neptune Systems included IQ-Level technology with every COR pump. Customize the minimum and maximum speed settings for your tanks plumbing to the ideal flow rate, but also the minimum flow rate for in tank flow and feed modes as well. 

Whisper Quiet

Neptune's COR uses the latest in Vector Control, BLDC motor technology. Driving the COR pump in a way that is super energy efficient using less than 50W at full power, and staying vibration and noise free. 

Operational Feedback

Know what is going on with your pump at all times. COR pumps come loaded with features that let you monitor your aquariums "heart" giving you the chance to fix something before it fails. Saltwater aquariums are notorious for creating calcium and other mineral build up on pumps and there internal parts that can inhibit the flow but more importantly could cause damage to the pump. Neptune Fusion lets you monitor the pumps internal temperature along with its wattage draw and flow rate allowing you to set alarms and alerts if something goes out of their normal thresholds. If the temperature of the pump increases to unsafe levels, the COR will actually slow itself down until temperatures reach a safe level again, giving you time to react and maintain the pump.

Compatible with any Apex Controller (requires Aquabus port)

Specifications

  • Pump Dimensions: 3.875" W x 4.875" H x 6.250" D
  • Driver Dimensions: 3" W x 4" H x 1" D
  • Max Flow: 2000 GPH
  • Max Head: 20FT
  • Input Size: 1" Slip PVC
  • Output Size: 3/4" Slip PVC or 1 1/4" Slip to BSPP Union
  • Power Consumption: Less than 90W @ 120VAC

What's Included?

1x COR-20 Pump Body
1x COR Driver Controller
1x 100W DC Power Supply
1x 1.25" PVC Union (slip to BSPP)
1x 1" Slip Fitting
1x 0.75" Slip Fitting
1x 3-foot Aquabus Cable

ome features require Apex Controller System

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 51846726261

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Reviewed in the United States on February 19, 2026
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Reviewed in the United States on May 13, 2026
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Reviewed in the United States on April 19, 2025
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