Item number: 10028064

DURAMAXX Clearflow-18 Aquarium External Filter 18W 3-Stage Filter 1000 l/h

Very quiet and economical external filter with 1000 litres of pumping capacity per hour for aquariums up to 400l size.

Latest generation 3-stage filtration technology to clean fresh and salt water.

Simple filling chamber via pumping cylinder with quick coupling for easy cleaning.

So that your aquarium never gets cloudy, DURAMAXX offers the Clearflow-18 aquarium external filter that uses the latest filtration technology to move dirt from your body of water. A three-stage filter system consisting of three individually removable filter baskets hidden inside the water purifier. Each basket can be filled with different filler materials, such as bio balls, ceramic rings or filter cotton, so as to remove entirely different elements with different particle sizes from the water flowing through. An additional prefilter collects coarse particles from the water, thus preventing the filter from being clogged.

Up to 1000 litres of water per hour can be pumped through the device via the economical 18W motor. That’s enough power to maintain the water quality even in very large aquariums up to 400L in volume. The pump can raise the filtered water up to 1.4m, so that they external filter may be placed easily on the ground beside, behind or in a cabinet underneath the aquarium. The 1.6m-long drainage hoses give you even more versatile choices in location. An innovative quick coupling system allows you to separate the inlet and outlet lines from the device in just two simple steps, without having to completely disassemble the filter system. This makes it a breeze to maintain the filter in the unit or to change it out. In addition, as an internal filter, you don’t have to disassemble the aquarium landscape when cleaning it.

Removal or feeding of aquarium water is done via an easy-to-use pipe racking system, which is unobtrusively mounted with suction cups on the aquarium wall under the lid or in the corner. A protective basket on the water intake of the DURAMAXX Cleanflow-18 prevents aquarium inhabitants from being unintentionally drawn into the filter system.

Please keep in mind that 3 x filter cotton are included. Additional filter material is optional to purchase.

Product details


  • External filter for aquariums up to 400l water capacity
  • Latest generation 3-stage filtration system
  • Economical 18W pump motor
  • Up to 1000 litre water flow per hour
  • Easy cleaning by quick-release system


  • 1 x device (incl. 3 filter baskets, 3 cotton filters & prefilter)
  • 1 x coupling
  • 2 x hose
  • 1 x pipe set supply incl. skimmer (10pc.)
  • 1 x pipe set dissipation (6pc.)
  • 1 x English user manual (other languages: German)


  • Dimensions: 23 x 39 x 24cm (WxHxD)
  • Weight: about 2.5kg


  • Individually removable filter baskets
  • Maximum lift of the water: 1.4m
  • Suitable for fresh and salt water
  • Possibility to use different filter materials such as bio-balls, ceramic rings or filter cotton
  • Prefilter to remove coarse elements
  • Inconspicuous installation of inlet and outlet in the aquarium
  • 360 ° rotating hose connectors
  • Hose length: 1.6m
  • Off switch on the device cover
  • Power supply: 220-240V / 50Hz

Operating instructions

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DURAMAXX Clearflow-18 Aquarium External Filter 18W 3-Stage Filter 1000 l/h

  • For aquariums with up to 400l water capacity
  • 3-stage filtration system
  • Economical 18W pump motor
£47.99 Incl. VAT
You can change your order at any time

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