External Canister Filters

Our collection of External Canister Filters is sure to have just the right product you’re looking for, whether it’s for your fish tank, aquarium, or pond. We stock adjustable external canister filters, UV & Flow control external canister filters and plenty more. You can enjoy free UK shipping with no minimum order quantity, as well as same-day despatch on orders placed before 4pm. Browse our range of external canister filters below.

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  1. Sunsun 4600l/h External Canister Filter Fish Tank Aquarium with UV + Flow Control

    The SunSun HW-5000 is one of the newest canister filters from SunSun that is easy to set up and simple to use. It offers a very high flow rate of 4600 litres per hour for just 40w of power consumption thanks to the removable DC pump with SINE wave technology which is more energy efficient than regular canister pumps.

    This model includes a detachable smart digital controller which allows users to adjust the water flow rate and UV sterilizer's "ON" time. The HW-5000 has a controllable built-in 9W UV steriliser, which is perfect for keeping algae away from your aquarium.

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  2. Boyu Adjustable Flow External Canister Filter 300-1610 L/H Optional UVC

    The Boyu DGN Series range of external canister filters are an extremely robust and feature rich filter suitable for aquariums up to 500 litres in size. As the newest filter range from this manufacturer, these filters have a very low power draw, but with very high performance.

    These filters have an easy adjust touch panel to adjust the output flow rate of the filter. The minimum flow rate is 300 litres per hour, and the maximum flow rate is 1610 litres per hour. These filters are also self-priming and do not require manual priming which can be difficult with other filters.

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  3. Sunsun 3000l/h External Canister Filter Fish Tank Aquarium with UV + Flow Control
    Newest canister from SunSun that is easy and simple to use. The HW-3000 features an LCD display that will surely enhance any user's experience with the canister. With an LCD display, users can adjust the flow of the pump. The HW-3000 also has a controllable built-in 9W UV steriliser, which is perfect for keeping algae away from your aquarium. Learn More
  4. 1000l/h Aquarium Fish Tank External Canister Filter with Media
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    100% of 100

    The Finest Filters new and improved range of external canister filters can easily be connected to aquariums up to 1000 litres in size (depending on model), and are suitable for all water types, including coldwater, tropical freshwater and saltwater (marine) aquariums.

    This filter is the 1000l/h model without UV steriliser

    Suitable for aquariums up to 400 litres in size

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  5. 1000l/h Aquarium Fish Tank External Canister Filter with UV Steriliser

    The Finest Filters new and improved range of external canister filters can easily be connected to aquariums up to 1000 litres in size (depending on model), and are suitable for all water types, including coldwater, tropical freshwater and saltwater (marine) aquariums.

    This filter is the 1000l/h model with UV steriliser

    Suitable for aquariums up to 400 litres in size

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  6. 1400l/h Aquarium Fish Tank External Canister Filter with Media

    The Finest Filters new and improved range of external canister filters can easily be connected to aquariums up to 1000 litres in size (depending on model), and are suitable for all water types, including coldwater, tropical freshwater and saltwater (marine) aquariums.

    This filter is the 1400l/h model without UV steriliser

    Suitable for aquariums up to 600 litres in size

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  7. 1400l/h Aquarium Fish Tank External Canister Filter with UV Steriliser
    Rating:
    100% of 100

    The Finest Filters new and improved range of external canister filters can easily be connected to aquariums up to 1000 litres in size (depending on model), and are suitable for all water types, including coldwater, tropical freshwater and saltwater (marine) aquariums.

    This filter is the 1400l/h model with UV steriliser

    Suitable for aquariums up to 600 litres in size

    Learn More
  8. 2000l/h Aquarium Fish Tank External Canister Filter with Media
    Rating:
    94% of 100

    The Finest Filters new and improved range of external canister filters can easily be connected to aquariums up to 1000 litres in size (depending on model), and are suitable for all water types, including coldwater, tropical freshwater and saltwater (marine) aquariums.

    This filter is the 2000l/h model without UV steriliser

    Suitable for aquariums up to 1000 litres in size

    Learn More
  9. 2000l/h Aquarium Fish Tank External Canister Filter with UV Steriliser
    Rating:
    100% of 100

    The Finest Filters new and improved range of external canister filters can easily be connected to aquariums up to 1000 litres in size (depending on model), and are suitable for all water types, including coldwater, tropical freshwater and saltwater (marine) aquariums.

    This filter is the 2000l/h model with UV steriliser

    Suitable for aquariums up to 1000 litres in size

    Learn More
  10. Hidom EX-1000 External Aquarium Fish Tank Canister Filter With Media -1000l/h

    Hidom EX Range External Canister Filters Complete with Media - Suitable for Freshwater, Coldwater and Marine Aquariums

    3 Models Available EX-1000 (1000 litres per hour), EX-1200 (1200 litres per hour) and EX-1500 (1500 litres per hour)

    The efficient Hidom EX external aquarium filter system utilises a multi-stage approach to filtration. Filtering aquarium tank water through internal layered baskets filled with assorted filter media material it provides extremely thorough biological, mechanical and chemical filtration.    

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