The D-D Funktion DC Return Pump range combines power, efficiency, and control to deliver reliable circulation for reef, marine, and freshwater aquariums. With models from 2000 to 10000 L/H, Funktion return pumps are designed for both small and large systems, providing quiet operation, flexible installation, and advanced safety features.
Each pump is equipped with a digital controller featuring multiple flow modes, soft-start operation, adjustable power settings, and feed mode for quick flow reduction during feeding or maintenance. Run-dry detection and automatic shutdown protect both the pump and your aquarium, while low-voltage sine-wave technology ensures minimal noise, low heat, and maximum energy efficiency.
The pumps can be installed submerged in a sump or externally (on larger models), and come supplied with multiple fittings for both flexible hose and rigid pipe connections. Built with wear-resistant ceramic shafts and bearings, the Funktion return pumps are engineered for long-lasting performance in demanding aquarium environments.
Key Benefits
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Five models from 2000 to 10000 L/H
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Digital controller with flow adjustment, soft-start, and feed mode
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Multiple installation options: submersible or external (larger models)
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Run-dry protection with auto-shutdown
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Energy-efficient, low-noise sine-wave motor technology
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Includes flexible hose and rigid pipe fittings
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Suitable for both freshwater and saltwater systems
Specifications by Model
Model |
Max Flow Rate |
Max Head Height |
Power Usage |
Installation |
Suitable For |
---|---|---|---|---|---|
FP2000 |
2000 L/H |
2.2 m |
20W |
Submersible only |
Small aquariums & nano reef systems |
FP3500 |
3500 L/H |
3.5 m |
28W |
Submersible only |
Medium-sized aquariums |
FP5000 |
5000 L/H |
4.0 m |
40W |
Submersible or external |
Reef aquariums with higher turnover |
FP6500 |
6500 L/H |
4.5 m |
48W |
Submersible or external |
Large reef/marine aquariums |
FP10000 |
10000 L/H |
6.0 m |
80W |
Submersible or external |
Very large or heavily stocked systems |




