The D-D Funktion DC Return Pumps deliver versatile performance with intelligent digital control. Three wave modes plus constant running give you precise flow customization for return lines, media reactors, or closed-loop systems (5000–20000 models). Sine wave technology and low-voltage motor design mean whisper-quiet operation, minimal heat generation, and reduced energy consumption—ideal for both saltwater and freshwater setups. Built for reliability and efficiency, these pumps keep your aquarium running smoothly without the noise or power draw of traditional alternatives. Features • Full range of high flow pumps with a compact footprint• Unique digital controller with 3 wave functions and a constant flow mode• Allows you to pulse your return for additional variable water movement in your aquarium• Sine wave technology for low running noise• Low voltage• Energy efficient motor• Suitable for saltwater and freshwater• Wear and corrosion resistant ceramic shaft and bearings• Detachable footplate with anti vibration rubber feet• Splash proof connection between the pump and controlle Pulse Your Return Pulse your return using the special controller on PULSE mode, so that the water returning from your sump through your return nozzle into your aquarium acts as an additional source of variable flow. The change from the high and low flow on the pump is so rapid that the water level in the tank does not change, so you get no additional noise through the overflow. Flexible Installation Options • 5000, 6500, 10000, 15000 and 20000 models can be installed externally• All models are fully submersible• Pump outlet can be positioned to face upwards, left or right• Standard suction cage included for normal submerged use• Quick couple unions included for simple pump removal• Multiple pipe connections included Elephant Nose Each pump comes with a special ‘Elephant Nose’ suction attachment included in the box. This suction nozzle allows you to draw water from the bottom of the tank or sump which removes the problem of surface vortices, reduces bubble carryover from the sump and scavenges detritus to be dispersed in the water for removal by your ClariSea. Controller Features Unique multi-function digital controller with touch button pad Back-lit LCD colour display with adjustable screen brightness Multi-language display with screensaver 4 different flow modes Adjustable minimum and maximum power settings in wave and pulse modes. Adjustable maximum power on pump mode Feed mode and on/off functions Run-dry detection with automatic shutdown function Detachable mounting bracket Pump - Creates a steady flow that runs continuously giving a prevailing current and good movement in the open water areas of the aquarium, adjustable on the digital controller between the minimum and maximum power settings of 30 and 100. Ideal in a reef situation when multiple circulation pumps are in use, mixing this flow pattern with pumps running pulse, wave or random programs can ensure good flow throughout the aquarium. Also suited to planted aquariums or fish only aquariums where constant flow is beneficial. Wave - A constant wave output is created as the pump ramps up and down between a minimum and maximum power setting giving a sine wave effect. The frequency and power settings can be changed on the controller to adjust the length and size of the wave. This flow pattern will create a gentle wave simulating deeper reef or calmer lagoon environments making it ideal for more LPS or soft coral dominated aquariums. Storm - A completely random wave pattern is created by the controller simulating a chaotic reef environment where the flow is constantly changing. The pump will automatically switch between constant, pulse and wave patterns at different time intervals alternating its power settings. Ideal for stirring up detritus so it can be removed by filtration. Pulse - The speed of the pump will alternate between a low and high power setting and can be used to set up a standing wave. The frequency and power settings can be changed on the controller. Pulse mode is well suited to corals that prefer high energy wave patterns such as those found on the reef crest. FP2000 MAXIMUM FLOW RATE: 2000 L/H MAXIMUM HEAD HEIGHT: 2.2m MAXIMUM WATTAGE: 20W POWER OUTPUT: 24V RIGID PIPE ADAPTORS: N/A FLEXIBLE HOSE ADAPTORS: 16mm / 20mm FP3500 MAXIMUM FLOW RATE: 3500 L/H MAXIMUM HEAD HEIGHT: 3.5m MAXIMUM WATTAGE: 28W POWER OUTPUT: 24V RIGID PIPE ADAPTORS: 25mm FLEXIBLE HOSE ADAPTORS: 25mm / 20mm FP5000 MAXIMUM FLOW RATE: 5000 L/H MAXIMUM HEAD HEIGHT: 4.0m MAXIMUM WATTAGE: 40W POWER OUTPUT: 24V RIGID PIPE ADAPTORS: 25mm / 32mm / 40mm FLEXIBLE HOSE ADAPTORS: 20mm / 25mm / 32mm FP6500 MAXIMUM FLOW RATE: 6500 L/H MAXIMUM HEAD HEIGHT: 4.5m MAXIMUM WATTAGE: 48W POWER OUTPUT: 24V RIGID PIPE ADAPTORS: 25mm / 32mm / 40mm FLEXIBLE HOSE ADAPTORS: 20mm / 25mm / 32mm FP10000 MAXIMUM FLOW RATE: 10000 L/H MAXIMUM HEAD HEIGHT: 6.0m MAXIMUM WATTAGE: 80W POWER OUTPUT: 24V RIGID PIPE ADAPTORS: 25mm / 32mm / 40mm FLEXIBLE HOSE ADAPTORS: 20mm / 25mm / 32mm FP15000 MAXIMUM FLOW RATE: 15000 L/H MAXIMUM HEAD HEIGHT: 7.0m MAXIMUM WATTAGE: 120W POWER OUTPUT: 24V RIGID PIPE ADAPTORS: 40mm / 50mm FLEXIBLE HOSE ADAPTORS: 32mm / 38mm / 50mm FP20000 MAXIMUM FLOW RATE: 20000 L/H MAXIMUM HEAD HEIGHT: 9.5m MAXIMUM WATTAGE: 180W POWER OUTPUT: 36V RIGID PIPE ADAPTORS: 40mm / 50mm FLEXIBLE HOSE ADAPTORS: 32mm / 38mm / 50mm Dimensions FP2000: 89 × 66 × 105 mm (L x W x H) FP3500: 130 × 80 × 107 mm (L x W x H) FP5000, FP6500, & FP10000: 168 × 104 × 129 mm (L x W x H FP15000, FP20000: 250 × 126× 167 mm (L x W x H)
