• Oase AquaMax Eco Expert 21000 Filter and Waterfall Pumps

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Oase AquaMax Eco Expert 21000 Filter and Waterfall Pumps

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Our Price:

Oase AquaMax Eco Expert 21000 Filter and Waterfall Pump

Our Ref: OAP087
Manufacturers Ref: 39916
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Availability - Currently only 1 in stock

£61 Voucher Code
See information tab below for details

Free Next Working Day Delivery Upgrade
(Same day dispatch if ordered by 2pm Monday - Friday) - UK Mainland Only

The Oase AquaMax Eco Expert 21000 pumps are an energy-efficient pump range designed for extremely powerful but economic performance, they are perfect for use in demanding filter systems or for large watercourses and waterfalls. They have robust stainless steel strainer which allows particles as large as 11mm to pass through and be pumped. The design includes unique, patented frost protection meaning the pump will not be damaged at temperatures as low as -20°C.

The Oase AquaMax Eco Expert 21000 pumps include Oases' Environmental Function Control (EFC) protection which means the pump is switched off if the Impeller chamber is not full of water. This guards against dry running and blocking problems. Suitable for submerged or dry running installations (but is not self priming). These pumps are unusually quiet in operation meaning they are ideal for use in pump chambers. Oases' Patented Seasonal Flow Control (SFC) included in the design which if switched on will reduce the flow as the temperature drops. This can lead to 30% energy savings. Supplied with 10m of power cable and a 3 year warranty, which can be upgraded to 5 years by sending the guarantee card off to Oase.

Oase AquaMax Eco Expert 21000 Pond Pump Features
• Very high flowrate 21000 LPH
• Can pass up to 11mm solids
• Can be dry mounted or submerged
• Large stable base and handle
• Side outlet position
• Exceptionally quiet
• Environmental Function Control (EFC) protection
• Seasonal Flow Control (SFC)
• Up to 5 years warranty
• OASE Easy Garden Control (EGC) compatible
• OASE Eco Pump Control compatible

This product is part of the OASE Easy Garden Control (EGC) range which allows remote monitoring and control via free access to the OASE Cloud. This allows you to communicate with your pond whilst away from home. Other compatible products include:
Oase Easy Garden Control
Oase EGC Electrical Controllers
InScenio EGC Controller (Cloud) - Smart Control
InScenio FM Master EGC Controller (Cloud) - Smart and Power Control
Oase EGC Electrical Cables
2.5m - Oase EGC (DMX) Cable
5m - Oase EGC (DMX) Cable
10m - Oase EGC (DMX) Cable
Oase EGC (DMX) Cable Connector
Oase EGC Filters
Oase Biotec Premium 80000 EGC Drum Filter
Oase Proficlear Premium Compact - M - Pond Filter - Pump Fed
Oase Proficlear Premium Compact - L - Pond Filter - Pump Fed
Oase EGC Pumps
Oase Aquamax Eco Titanium 31000 Dry Mounted Pump
Oase Aquamax Eco Titanium 51000 Dry Mounted Pump
Oase Aquamax Eco Expert 21000 Filter Pump
Oase Aquamax Eco Expert 26000 Filter Pump
Oase Aquamax Eco Expert 44000 Filter Pump
Oase Aquarius Eco Expert 22000 Fountain Pump
Oase Aquarius Eco Expert 28000 Fountain Pump
Oase Aquarius Eco Expert 44000 Fountain Pump
Oase AquaAir ECO 250 Lake Aerator
Oase EGC Lighting
Oase Profi Lux Lighting
Oase Pond Jet RGB Lighting

If you only need local control of this pump, then the Oase Eco Pump Control can be used instead of the full EGC system.

Oase AquaMax Eco Expert 21000 Filter and Waterfall Pumps - Product Video

Use the table below to select the correctly sized item. If you have any difficulties deciding which size is right for you, contact us by email or phone and we will be very happy to assist you.

Outlet size (mm)
Flowrate Litres per Hour
(Gallons per Hour)
Eco Expert 21000
38 / 50
Eco Expert 26000
38 / 50
Eco Expert 36000
38 / 50
Eco Expert 44000
38 / 50
To calculate the approximate volume of your pond, select the Shape, Unit of Measurement and amount of shading, then press calculate. If you would like to try different combinations, remember to press Reset between calculations.
Pond Shape
Pond Size
Rectangular Metres / Litres Full Sunshine  
Circular Feet / Gallons Partly Shaded  
Actual Volume
Effective Volume

What is Effective Volume ?
The effective volume is the quantity of water in your pond, plus an allowance for shallow and or ponds exposed to high levels of sunlight. Both of these situations will result in a higher than normal algae growth, and fish pollution. We advise that to ensure your that your equipment is correctly sized, the effective volume be considered the minimum size for the equipment you select. However do remember to check the details of the product you are interested in, to ensure that there are no other allowances or consideration specific to that product are required.

If a product is advertised with a Discount Code, we will email you a unique code as soon as your goods are dispatched. This code will be valid for use on our website 12 months from the date of your purchase.

Please note the following conditions of use:

Voucher codes are not transferable and must be delivered to the same address as your original order.

Our voucher codes have no cash alternative value.

If your original goods are returned for a refund the voucher code will become invalid and the value of a used voucher code will be deducted from your refund.

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