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Filters

External Filters

The flexibility of an External, Cannister or H.O.B Filter offers superior efficiency when compared to smaller internal filters.

The huge difference in media capacity within an external filter translates into a much larger surface area for beneficial filter bacteria to grow, allowing you to increase the bio load and fish capacity of your aquarium.

With numerous media options including options for chemical as well as biological filtration, an external filter is certain to reduce maintenance frequency when compared to competing internal filter options too. The ability to clean and remove the filter from the system without putting your hands in the aquarium is an added bonus, making filter cleaning a much simpler and less messy task.

We have options for every budget and aquarium size from 40 litres to 1500litres. Some options even include integrated pre-filters for reduced maintenance or heaters and UVC to reduce algae and keep electronics out of the display aquarium, saving that space solely for your fish and aquascape.

All of our options have been tried and tested by us here at aquatech and have been chosen to retail based on their quality for price. All come with excellent guarantees so you can be sure these filters are for purpose, high quality and built to last.

  • Save £3.84
    Original price £20.29
    Current price £16.45

    AQUAEL VERSAMAX MINI

    Description:VERSAMAX is an external hang-on filter designed for the filtration and aeration of water in regular-sized and nano-aquariums. Thanks to...

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    Original price £20.29
    Current price £16.45
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  • Save £5.60
    Original price £35.59
    Current price £29.99

    AQUAEL EXTERNAL UNIPUMP 1000LPH

    Description:UNI PUMP 1000230V 15 watt 1.45M HEAD 700LPHInternal and External use.Uses 16/22m hose Simple construction- very easy to use Large filt...

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    Original price £35.59
    Current price £29.99
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  • Save £2.00
    Original price £31.99
    Current price £29.99

    AQUAEL INLINE STERILISER UV 3W

    Description:MULTI UV 3W – a sterilizer designed for use with any brand of external filter or any aquarium that can run via a return flow pump . con...

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    Original price £31.99
    Current price £29.99
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  • Save £9.40
    Original price £44.99
    Current price £35.59

    AQUAEL VERSAMAX FZN-1

    Description:7.2 WATTS500 L/HOUR20-100 LITRE AQUARIUMGREAT EXTERNAL FILTER FROM AQUAEL

    Original price £44.99
    Current price £35.59
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  • Save £4.60
    Original price £43.59
    Current price £38.99

    AQUAEL EXTERNAL UNIPUMP 1500LPH

    Description:UNI PUMP 15001230V 19 watt 1.55M HEAD 700LPHInternal and External use.Uses 16/22m hose Simple construction- very easy to use Large fil...

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    Original price £43.59
    Current price £38.99
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  • Save £5.00
    Original price £43.99
    Current price £38.99

    AQUAEL EXTERNAL UNIPUMP 700LPH

    Description:UNI PUMP 70012V 9.5 watt 1.45M HEAD 700LPHInternal and External use.Uses 12/16m hose Large filtering capacity – efficiently cleans wat...

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    Original price £43.99
    Current price £38.99
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  • £43.99

    Ocellaris 400 Canister Filter

    Ocellaris 400 Suits Aquariums: between 60-100 Litres Wattage: 6.7W Max Head Height: 1.5m Max Flow Rate: 400L/hr Key Features: Powerful, yet extreme...

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    £43.99
  • Save £10.71
    Original price £54.99
    Current price £44.28

    AQUAEL VERSAMAX FZN-2

    Description:Ideal water cleaners, circulators & oxygenators. Thanks to great efficiency, FZN external filters ensure intensive filtration and d...

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    Original price £54.99
    Current price £44.28
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  • Save £11.33
    Original price £59.99
    Current price £48.66

    AQUAEL VERSAMAX FZN-3

    Description:Ideal water cleaners, circulators & oxygenators. Thanks to great efficiency, FZN external filters ensure intensive filtration and d...

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    Original price £59.99
    Current price £48.66
    Save £11.33
  • Save £13.53
    Original price £67.99
    Current price £54.46

    SICCE SPACE EKO+ 100 EXTERNAL

    Description:SPACE EKO are canister filters ideal for freshwater aquariums. A unique easy start up system, large filter capacity and silent operatio...

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    Original price £67.99
    Current price £54.46
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  • Save £7.00
    Original price £76.99
    Current price £69.99

    SICCE WHALE 120 BLACK EXT 540L/H

    WHALE Canister filters offer exceptional value to customers without sacrificing quality or features. The design is compact, yet offers extremely hi...

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    Original price £76.99
    Current price £69.99
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  • Save £17.26
    Original price £88.99
    Current price £71.73

    SICCE SPACE EKO+ 200 EXTERNAL

    Description:SPACE EKO are canister filters ideal for freshwater aquariums. A unique easy start up system, large filter capacity and silent operatio...

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    Original price £88.99
    Current price £71.73
    Save £17.26
  • Save £18.38
    Original price £99.99
    Current price £81.61

    SICCE SPACE EKO+ 300 EXTERNAL

    Description:SPACE EKO are canister filters ideal for freshwater aquariums. A unique easy start up system, large filter capacity and silent operatio...

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    Original price £99.99
    Current price £81.61
    Save £18.38
  • Save £31.50
    Original price £118.00
    Current price £86.50

    EHEIM ECCO PRO 130

    The Eheim Ecco-Pro 130 is an energy- saving filter which is powerful and efficient and now comes with prefilter for long intervals between cleaning...

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    Original price £118.00
    Current price £86.50
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  • £87.99

    Ocellaris 850 Canister Filter

    Ocellaris 850 Suits Aquariums: between 150-250 Litres UV: Wattage: 9.7W Max Head Height: 1.5m Max Flow Rate: 850L/hr Key Features: Powerful, yet ex...

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    £87.99
  • £87.99

    Canister Filter 750 Aquis Pro

    Aquis 750 Suits Aquariums: between 100-200 Litres Wattage: 12.5W Voltage: 240V/50Hz Max Head Height: 1.4m Max Flow Rate: 650L/hr Key Features: Pro...

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    £87.99
  • Save £13.00
    Original price £102.99
    Current price £89.99

    SICCE WHALE 200 BLACK EXT 700L/H

    Description:WHALE Canister filters offer exceptional value to customers without sacrificing quality or features. The design is compact, yet offers ...

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    Original price £102.99
    Current price £89.99
    Save £13.00
  • Save £25.00
    Original price £114.99
    Current price £89.99

    FLUVAL 107 External Cannister Filter

    FLUVAL '07' SERIES The All-New 07 Series marks the 7th incarnation in nearly 4 decades of Fluval’s top selling canister filter family worldwide...

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    Original price £114.99
    Current price £89.99
    Save £25.00
  • Save £26.56
    Original price £119.99
    Current price £93.43

    AQUAEL FILTER ULTRA 900

    Description:Aquael Ultra Filters are a range of modern aquarium filters intended for medium and large tanks. With a built-in shut-off valve for the...

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    Original price £119.99
    Current price £93.43
    Save £26.56
  • Save £33.10
    Original price £129.99
    Current price £96.89

    AQUAEL FILTER ULTRA 1200

    Description:Aquael Ultra Filters are a range of modern aquarium filters intended for medium and large tanks. With a built-in shut-off valve for the...

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    Original price £129.99
    Current price £96.89
    Save £33.10
  • Save £32.05
    Original price £130.00
    Current price £97.95

    EHEIM ECCO PRO 200

    The Eheim Ecco-Pro 200 is an energy- saving filter which is powerful and efficient and now comes with prefilter for long intervals between cleaning...

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    Original price £130.00
    Current price £97.95
    Save £32.05
  • Save £48.01
    Original price £147.00
    Current price £98.99

    EHEIM ECCO PRO 300

    The Eheim Ecco-Pro 300 is an energy- saving filter which is powerful and efficient and now comes with prefilter for long intervals between cleaning...

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    Original price £147.00
    Current price £98.99
    Save £48.01
  • £99.99

    Canister Filter 1050 Aquis Pro

    Aquis 1050 Suits Aquariums: between 200-350 Litres Wattage: 28W Voltage: 240V/50Hz Max Head Height: 2m Max Flow Rate: 1250L/hr Key Features: Profe...

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    £99.99
  • Save £28.00
    Original price £129.99
    Current price £101.99

    FLUVAL 207 External Cannister Filter

    FLUVAL '07' SERIES The All-New 07 Series marks the 7th incarnation in nearly 4 decades of Fluval’s top selling canister filter family worldwide...

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    Original price £129.99
    Current price £101.99
    Save £28.00