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Pond Filters

Pond & Koi Filtration

Buying a pond or Koi pond filter? We have been selling pond filtration solutions for over 30 years and are the best to review your water gardens requirements. Browse online or visit one of our UK shops for the best advise and lowest price promise prices.

Pond Filtration Putting It Simply

There are two main types of successful pond filtration.

An ULTRA VIOLET filter kills green water to keep the water clear, while a BIOLOGICAL FILTER looks after the water quality to keep the fish healthy and happy. Most modern filters combine these methods into one unit for convenience and ease of installation. It is recommended to use a biological pond filter if you are keeping koi carp or any pond fish.



Filter:
  • On Sale! Save 20%
    Oase Biosmart 18000, 24000 And 36000 Replacement Green Filter Foam

    Oase

    Oase Biosmart 18000, 24000 And 36000 Replacement Green Filter Foam

    Replacement green foam Oase Biosmart 18000/24000/18000 Replacement foams to fit the Oase Biosmart 18000 (56778) Oase Biosmart 24000 (56785) Oase Biosmart 36000 (56793) Oase Biotec 5.1 (56640) Oase Biotec 10.1 Oase part number: 56679

    MSRP: £23.99
    Was: £23.99
    Now: £18.99
    £18.99
  • On Sale! Save 20%
    Oase Biosmart 18000, 24000 And 36000 Replacement Blue Filter Foam

    Oase

    Oase Biosmart 18000, 24000 And 36000 Replacement Blue Filter Foam

    Replacement blue foam Oase Biosmart 18000/24000/18000 Replacement foams to fit the Oase Biosmart 18000 (56778) Oase Biosmart 24000 (56785) Oase Biosmart 36000 (56793) Oase Biotec 5.1 (56640) Oase Biotec 10.1 Oase part number: 56678

    MSRP: £23.99
    Was: £23.99
    Now: £18.99
    £18.99
  • On Sale! Save 20%
    Oase Biosmart 18000, 24000 And 36000 Replacement Red Filter Foam

    Oase

    Oase Biosmart 18000, 24000 And 36000 Replacement Red Filter Foam

    Replacement red foam Oase Biosmart 18000/24000/18000 Replacement foams to fit the Oase Biosmart 18000 (56778) Oase Biosmart 24000 (56785) Oase Biosmart 36000 (56793) Oase Biotec 5.1 (56640) Oase Biotec 10.1 Oase part number: 56677

    MSRP: £23.99
    Was: £23.99
    Now: £18.99
    £18.99
  • On Sale! Save 20%
    Oase Biosmart blue foam 35792

    Oase

    Oase Biosmart 7000 And 14000 Replacement Blue Filter Foam

    Replacement blue foam Oase Biosmart 7000/14000 For BioSmart 7000 and 14000 filters. The heart of a filter are its filter sponges: Blue filter sponges have coarse filtration properties, because they develop their full function even at high water...

    MSRP: £23.99
    Was: £23.99
    Now: £18.99
    £18.99
  • On Sale! Save 20%
    Bio smart red sponge 35791

    Oase

    Oase Biosmart 7000 And 14000 Replacement Red Filter Foam

    Replacement red/orange foam Oase Biosmart 7000/14000 For BioSmart 7000 and 14000 filters. The heart of a filter is its filter sponges: Red filter sponges have fine filtration properties, because they develop their full function when the water has a...

    MSRP: £23.99
    Was: £23.99
    Now: £18.99
    £18.99
  • On Sale! Save 20%
    Oase Biopress 4000 Replacement Filter Foam Set

    Oase

    Oase Biopress 4000 Replacement Filter Foam Set

    Replacement foam set Oase Biopress 4000 For BioPress Set 4000. The heart of a filter are its filter sponges - especially this filter sponge set, which combines the blue and black sponges in a small space. Black filter sponges have the finest filtration...

    MSRP: £30.99
    Was: £30.99
    Now: £24.49
    £24.49
  • On Sale! Save 50%
    Cash Back Offer*
    Oase Biopress 10000 Compact Pressure Filter

    Oase

    Oase Biopress 10000 Compact Pressure Filter

    Oase Biopress 10000 Compact Pressure filter with 11w UVC Bio Press filters help create a clear and healthy environment for fish and other pond inhabitants. The easy clean technology employed in the design, makes the necessary maintenance tasks muck...

    MSRP: £609.99
    Was: £609.99
    Now: £304.99
    £304.99
  • On Sale! Save 50%
    Cash Back Offer*
    Oase Biopress 6000 Compact Pressure Filter

    Oase

    Oase Biopress 6000 Compact Pressure Filter

    Oase Biopress 6000 Compact Pressure filter with 9w UVC Bio Press filters help create a clear and healthy environment for fish and other pond inhabitants. The easy clean technology employed in the design, makes the necessary maintenance tasks muck...

    MSRP: £439.99
    Was: £439.99
    Now: £219.99
    £219.99
  • On Sale! Save 50%
    Cash Back Offer*
    Oase Biopress 4000 Compact Pressure Filter

    Oase

    Oase Biopress 4000 Compact Pressure Filter

    Oase Biopress 4000 Compact Pressure filter with 7w UVC Bio Press filters help create a clear and healthy environment for fish and other pond inhabitants. The easy clean technology employed in the design, makes the necessary maintenance tasks muck...

    MSRP: £359.99
    Was: £359.99
    Now: £179.99
    £179.99
  • Evolution Aqua Nexus 320 Pond Filter

    Evolution Aqua

    Evolution Aqua Nexus 320+ Pond Filter

    Evolution Aqua Nexus Eazy 320 Plus Pond Filter Systems Model: Nexus 320+ Max Pond Size: 34000 Litres / 7500 Gallons Maximum Flow Rate 13000 Litres / 2859 Gallons Per Hour Volume Of Water Held: 840 Litres / 185 Gallons K1 Micro Media Supplied: 20...

    Now: £1,595.00
    £1,595.00
  • On Sale! Save 12%
    Lotus Green Genie 48000 Filter & UV

    Lotus

    Lotus Green Genie 48000 Combined Pond Filter & UV

    Green Genie 48000 Combined Ultra Violet & Biological Filtration box The award winning Green Genie combines one of Europe’s most successful bio-filters with state of the art UV technology.Made in the UK. Reticulated Foam,...

    MSRP: £525.99
    Was: £525.99
    Now: £459.99
    £459.99
  • On Sale! Save 13%
    Lotus Green Genie 30000 Filter & UV

    Lotus

    Lotus Green Genie 30000 Combined Pond Filter & UV

    Green Genie 30000 Combined Ultra Violet & Biological Filtration box The award winning Green Genie combines one of Europe’s most successful bio-filters with state of the art UV technology.Made in the UK. Reticulated Foam,...

    MSRP: £432.99
    Was: £432.99
    Now: £374.99
    £374.99
  • On Sale! Save 14%
    Lotus Green Genie 24000 Filter & UV

    Lotus

    Lotus Green Genie 24000 Combined Pond Filter & UV

    Green Genie 24000 Combined Ultra Violet & Biological Filtration box The award winning Green Genie combines one of Europe’s most successful bio-filters with state of the art UV technology.Made in the UK. Reticulated Foam,...

    MSRP: £319.99
    Was: £319.99
    Now: £274.99
    £274.99
  • On Sale! Save 14%
    Lotus Green Genie 18000 Filter & UV

    Lotus

    Lotus Green Genie 18000 Filter & UV

    Green Genie 18000 Combined Ultra Violet & Biological Filtration box The award winning Green Genie combines one of Europe’s most successful bio-filters with state of the art UV technology.Made in the UK. Reticulated Foam,...

    MSRP: £269.99
    Was: £269.99
    Now: £229.99
    £229.99
  • On Sale! Save 12%
    Lotus Green Genie 12500 Filter & UV

    Lotus

    Lotus Green Genie 12500 Combined Pond Filter & UV

    Green Genie 12500 Combined Ultra Violet & Biological Filtration box The award winning Green Genie combines one of Europe’s most successful bio-filters with state of the art UV technology.Made in the UK. Reticulated Foam,...

    MSRP: £205.99
    Was: £205.99
    Now: £179.99
    £179.99
  • On Sale! Save 11%
    Lotus Green Genie 6500 Filter & UV

    Lotus

    Lotus Green Genie 6500 Combined Pond Filter & UV

    Green Genie 6500 Combined Ultra Violet & Biological Filtration box The award winning Green Genie combines one of Europe’s most successful bio-filters with state of the art UV technology.Made in the UK. Reticulated Foam,...

    MSRP: £169.99
    Was: £169.99
    Now: £149.99
    £149.99
  • On Sale! Save 12%
    Lotus Green Genie 3500 Filter & UV

    Lotus

    Lotus Green Genie 3500 Combined Pond Filter & UV

    Green Genie 3500 Combined Ultra Violet & Biological Filtration box The award winning Green Genie combines one of Europe’s most successful bio-filters with state of the art UV technology.Made in the UK. Reticulated Foam,...

    MSRP: £159.99
    Was: £159.99
    Now: £139.99
    £139.99
  • Evolution Aqua K1 Media 25 Litres

    Evolution Aqua

    Evolution Aqua K1 Media 25 Litres

    Evolution Aqua 25L K1 Media K1 media is engineered in a wheel shape and is slightly positively buoyant. This near neutral buoyancy allows the media to circulate throughout the vessel with only a minimal water flow.This flow is created with your air pump...

    Now: £49.95
    £49.95
  • Evolution Aqua K1 Micro Media 50 Litres

    Evolution Aqua

    Evolution Aqua K1 Micro Media 50 Litres

    K1 Micro Media 50 Litres by Evolution Aqua K1 media has been used by Evolution Aqua in Koi filtration systems for a number of years. This new type of filter media, K1 Micro, contains all of the benefits of traditional K1 media but is extruded in a much...

    Now: £114.95
    £114.95
  • Evolution Aqua K1 Media 50 Litres

    Evolution Aqua

    Evolution Aqua K1 Media 50 Litres

    Evolution Aqua 50L K1 Media K1 media is engineered in a wheel shape and is slightly positively buoyant. This near neutral buoyancy allows the media to circulate throughout the vessel with only a minimal water flow.This flow is created with your air pump...

    Now: £85.95
    £85.95
  • Evolution Aqua K1 Micro Media 25 Litres

    Evolution Aqua

    Evolution Aqua K1 Micro Media 25 Litres

    K1 Micro Media 25 Litres by Evolution Aqua K1 media has been used by Evolution Aqua in Koi filtration systems for a number of years. This new type of filter media, K1 Micro, contains all of the benefits of traditional K1 media but is extruded in a much...

    Now: £69.95
    £69.95
  • On Sale! Save 8%
    UV

    Evolution Aqua

    Evolution Aqua Evo UV 75 Clarifier

    Evolution Aqua Evo UV75 Ultraviolet Clarifier For Ponds The evoUV is simple to install, with universal mounting plates allowing you to fix the unit horizontally or vertically, or at any angle you choose. The evoUV range of clarifiers have been...

    MSRP: £249.95
    Was: £249.95
    Now: £229.95
    £229.95
  • On Sale! Save 9%
    UV

    Evolution Aqua

    Evolution Aqua Evo UV 55 Clarifier

    Evolution Aqua Evo UV55 Ultraviolet Clarifier For Ponds The evoUV is simple to install, with universal mounting plates allowing you to fix the unit horizontally or vertically, or at any angle you choose. The evoUV range of clarifiers have been...

    MSRP: £219.95
    Was: £219.95
    Now: £199.95
    £199.95
  • On Sale! Save 5%
    UV

    Evolution Aqua

    Evolution Aqua Evo UV 30 Clarifier

    Evolution Aqua Evo UV30 Ultraviolet Clarifier For Ponds The evoUV is simple to install, with universal mounting plates allowing you to fix the unit horizontally or vertically, or at any angle you choose. The evoUV range of clarifiers have been...

    MSRP: £184.95
    Was: £184.95
    Now: £174.95
    £174.95

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