Aquamax ECO Premium 20000 | OASE Pumps - Water Garden UK
  • Discontinued.  See new version AquaMax Eco Premium 21000 Pump.

    The OASE Aquamax Eco Premium 20000 pond pump is designed for submersed or dry mounted use in ponds for supplying water to pond filters, streams and waterfalls.  The highly efficient Eco Premium motor consumes the absolute minimum amount of energy possible, yet delivers impressive flow rates.  German design and built quality ensures long life and consistent, reliable performance.

    • 19,500 Litres/Hour Flow Rate / Max Vertical Lift of 5.4 metres.
    • Outstanding energy efficiency, perfect for continuous operation (only 180 watts power consumption).
    • Seasonal Flow Control (SFC) will further reduce electrical consumption by up to 25% in cooler water.
    • Ideal for connection to a pond filter system as solid waste of up to 11mm can be passed.
    • Capable of operating in temperatures as low as -20 degrees Celcius.
    • Ultra quiet operation and can be dry mounted (flooded suction) or continuously submersed.
    • German engineering ensures precise and reliable operation.
    • Guaranteed for 5 years (3 years + 2 years free of charge request guarantee).
    Find out more
  • £839.99 inc. VAT

    £699.99 exc. VAT

    This product is out of stock
  • Pay in 3 interest free payments of £280.00


11mm Solids-handling submersible pump, ideal for ponds, pond filters and watercourses.
Supplied complete with multi-stage straight hosetail connector, allowing connection of 1" (25mm), 1 1/4" (32mm), 1 1/2" (38mm) or 2" (51mm) flexible hose.

The Oase Aquamax Eco Premium pump range replace the highly successful Aquamax Eco Pro range of pond filter and watercourse pumps. 11mm solids handling and optimized pump impeller offers great pump performance; energy efficient Oase Eco motors achieve power savings of up to 25%.  A special pivotal ball joint facilitates multistage hose connection.

Aquamax Eco Premium range includes Oase unique patented Frost Protection Technology which allows the pump to over-winter in temperatures down to - 20°C; whilst Environment Function Control (EFC by Oase) protects against dry running and blockages.

The Aquamax Eco 12000, 16000 and 20000 pumps include a Seasonal Flow Control (SFC) function switch which enables reduced flow and (up to 30%) less power consumption during low temperature conditions.

All pumps include a secondary inlet, providing connection to an optional Satellite Strainer or Skimmer to improve circulation from all pond areas.

Note: The Aquamax ECO Premium 20000 is not suitable for remote variable speed control via an FM Master 3 or the OASE FM Master EGC Cloud  smart phone controller. This is due to the power it runs at. 

Additional peace of mind: The standard guarantee of 3 years can be extended by an additional 2 years, free of charge on request for a total of 5 years.

Product video

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  • Howard Pearson
    Using this dry mount on the return from a Proficlear Compact M Gravity and it copes with the return with ease.
    5 stars

Additional Information

Technical Info

Technical Info

Pump Comparison Chart for the OASE Aquamax Eco Premium pump range (4000 - 20000 Litres/Hour)

Aquamax Eco Premium Pump Model40006000800010000120001600020000
Dimensions (mm)340 x 280 x 165mm
Max Flow Rate (litres per hour)40006000800010000120001560019500
Max Flow Rate (litres per minute)66100133166200260325
Max Discharge Head (metres)3.23.644.755.25.4
Strainer Surface Area (cm²)1000cm²
Max Suction Lift (metres, if appropriate)N/A
Threaded discharge connection2" BSPM
Threaded suction connection2" BSPM
Connection for Hoses1", 1 1/4",1 1/2"1", 1 1/4",1 1/2", 2"
Solids handling capacity (mm Ø)10mm11mm
Voltage/Hz220-240V / 50Hz
Power consumption watts40w50w65w88w110w145w180w
Cable length (metres)10m
Installation OptionsFully submerged or dry installed (with flooded suction)
Guarantee + Free Request Guarantee (years)3 + 2



  •  Outstanding energy efficiency with extraordinary flow rates
  • Unique, Patented Frost Protection against temperatures as low as 20°C
  • Flow optimised impeller passes debris particles, such as fish waste or vegetation, of up to 11mm Ø
  • For trouble free operation we recommend connection to a Satellite Strainer or Aquaskim 40 Skimmer
  • Flow rates can be mechanically adjusted or remote, electronically speed controlled with an Oase InScenio FM Master 3
  • Environmental Function Control (EFC by Oase) protects against dry running and blocking
  • Aquamax Eco Premium pumps 12000, 16000 and 20000 Seasonal Flow Control reduces running speed in colder, Winter months, thereby achieving additional energy savings of up to 30%
  • The guarantee of 3 years can be extended by an additional 2 years free of charge on request for a total of 5 years.

Related tech articles and downloads

Performance Data

Performance Data

Pump Performance Curves for the OASE Aquamax Eco Premium pump range (4000 - 20000 Litres/Hour).

Aquamax ECO Premium Pump Curves 2014


Aquamax ECO Premium pump performance curves.

H (mWS) = Metres Head; Q (l/min) = litres per minute     1 metre = 3ft 3"; 1 gallon = 4.5 litres


Watercourse Pump Selection Diagram for Aquamax Eco Premium Pumps.


Aquamax Eco Premium 20000 Filter Pump

  • £839.99 inc. VAT

    £699.99 exc. VAT

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