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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:
  • EA Nexus Bypass Kit

    Evolution Aqua

    Evolution Aqua Universal Bypass Kit for Nexus 300 and 200

    Universal Bypass Kit for Nexus 300 and 200 (New Model Post June 2006) The Type 2 Overflow / Universal By-Pass Kit allows you to add an overflow pipe to your Nexus 200 and Nexus 300 filtration system, that was manufactured between 2006 and 2009. This kit...

    Now: £139.95
    £139.95
  • Nexus Upgrade Kits

    Evolution Aqua

    Evolution Aqua Nexus Easy 220 Upgrade Kit

    EAZY Upgrade Kit for Nexus 220 - Upgrade post 2006 model 200/210 to 220 Easily upgrade Nexus filters post 2006 Evolution Aqua have made it possible to upgrade previous models of the Nexus filtration system to incorporate the new and improved features...

    Now: £359.95
    £359.95
  • Nexus Upgrade Kits

    Evolution Aqua

    Evolution Aqua Nexus Easy 320 Upgrade Kit

    EAZY Upgrade Kit for Nexus 320 - Upgrade post 2006 model 300/310 to 320 Easily upgrade Nexus filters post 2006 Evolution Aqua have made it possible to upgrade previous models of the Nexus filtration system to incorporate the new and improved features...

    Now: £419.95
    £419.95
  • nexus auto clean

    Evolution Aqua

    Evolution Aqua Nexus 220 / 320 Automatic Cleaning Upgrade (Pump Fed)

    NEXUS 320 / 220 AUTOMATIC SYSTEM for Pump Fed SET UP This Nexus Automatic System can be installed on Nexus 220 & 320 pump fed filters manufactured after 2006.The kit includes a control box which connects up to an automated waste valve, airpump...

    Now: £549.95
    £549.95
  • nexus auto clean

    Evolution Aqua

    Evolution Aqua Nexus 220 Automatic Cleaning Upgrade (Gravity Fed)

    NEXUS 320 AUTOMATIC SYSTEM for GRAVITY SET UP This Nexus Automatic System can be installed on Nexus 220 gravity fed filters manufactured after 2006.The kit includes a control box which connects up to an automated waste valve, airpump control box...

    Now: £659.95
    £659.95
  • nexus auto clean

    Evolution Aqua

    Evolution Aqua Nexus 320 Automatic Cleaning Upgrade (Gravity Fed)

    NEXUS 320 AUTOMATIC SYSTEM for GRAVITY SET UP This Nexus Automatic System can be installed on Nexus 320 gravity fed filters manufactured after 2006.The kit includes a control box which connects up to an automated waste valve, airpump control box...

    Now: £659.95
    £659.95
  • Oase Filtral Aeration Set

    Oase

    Oase Filtral Aeration Set

    Oase Filtral Aeration Set The Oase Filtral Aeration Set is a great add-on for the new 2019 range of Filtral All-in-one Filters. It attaches to the fountain kit which we include free with all Filtral units. The set will add extra dissolved oxygen...

    Now: £13.99
    £13.99
  • On Sale! Save 53%
    filtral 1500 with free fountain and waterfall kit

    Oase

    Oase Filtral UVC 1500 Underwater Filter + Fountain Kit

    Oase Filtral 1500 submersible pond filter with built in UV clarifier  Includes free fountain nozzle kit worth £18.99 R.R.P We recommend use of the optional add-on Aeration Set available here The Oase Filtral 1500 is a submersible water...

    MSRP: £229.99
    Was: £229.99
    Now: £106.99
    £106.99
  • Hozelock Easyclear Bag of Stones (In Net)

    Hozelock

    Hozelock Easyclear Bag of Stones (In Net)

    Hozelock Easyclear Bag of Stones (In Net) Replacement stones for Easyclear range of pond filters Part number: Z10048 This is a genuine Hozelock part

    Now: £5.99
    £5.99
  • On Sale! Save 18%
    Oase Proficlear Compact-L Gravity Fed EGC

    Oase

    Oase Proficlear Compact-L Gravity Fed EGC

    Oase ProfiClear Premium Compact-L GravityFed EGC Professional compact drum filter as inexpensive alternative for smaller ponds, particularly koi ponds. High separation performance in the pump-fed as well as gravity-fed principle. Minimal...

    MSRP: £5,702.99
    Was: £5,702.99
    Now: £4,659.99
    £4,659.99
  • On Sale! Save 18%
    Oase Proficlear Compact-L Pump Fed EGC

    Oase

    Oase Proficlear Compact-L Pump Fed EGC

    Oase ProfiClear Premium Compact-L Pump Fed EGC Professional compact drum filter as inexpensive alternative for smaller ponds, particularly koi ponds. High separation performance in the pump-fed as well as gravity-fed principle. Minimal space...

    MSRP: £5,702.99
    Was: £5,702.99
    Now: £4,659.99
    £4,659.99
  • On Sale! Save 18%
    Oase BioTec Premium 80000 EGC Pump-Fed

    Oase

    Oase BioTec Premium 80000 EGC Pump-Fed

    Oase BioTec Premium 80000 EGC Pump-Fed Innovative filter system with extremely effective filter capacity. Intelligent controller system with easy operation monitors and displays the core functions. Professional drum filter technology for...

    MSRP: £2,802.99
    Was: £2,802.99
    Now: £2,289.99
    £2,289.99
  • Oase Filtomatic CWS 25000 Filter And Pump Set

    Oase

    Oase Filtomatic CWS 25000 Pond Filter and Pump Set

    Oase Filtomatic CWS 25000 Pond Filter & Aquamax Premium Pump Set The Oase filtomatic 25000 offers an affordable intelligent filtration system for the garden pond. The compact design allows a strong filter effect in the smallest place.Filtomatic...

  • Oase Filtomatic CWS 14000 Filter And Pump Set

    Oase

    Oase Filtomatic CWS 14000 Pond Filter and Pump Set

    Oase Filtomatic CWS 14000 Pond Filter & Aquamax Premium Pump Set The Oase filtomatic 14000 offers an affordable intelligent filtration system for the garden pond. The compact design allows a strong filter effect in the smallest place.Filtomatic...

  • Oase Filtomatic CWS 7000 Filter And Pump Set

    Oase

    Oase Filtomatic CWS 7000 Pond Filter and Pump Set

    Oase Filtomatic CWS 7000 Pond Filter & Aquamax Premium Pump Set The Oase filtomatic 7000 offers an affordable intelligent filtration system for the garden pond. The compact design allows a strong filter effect in the smallest place.Filtomatic 7000...

  • Oase Filtomatic 25000 Clear Water System

    Oase

    Oase Filtomatic 25000 Clear Water Pond Filter System

    Oase Filtomatic CWS 25000 Pond Filter The Oase filtomatic 25000 offers an affordable intelligent filtration system for the garden pond. The compact design allows a strong filter effect in the smallest place.Filtomatic 25000...

  • filtomatic 14000

    Oase

    Oase Filtomatic 14000 Clear Water Pond Filter System

    Oase Filtomatic CWS 14000 Pond Filter The Oase filtomatic 14000 offers an affordable intelligent filtration system for the garden pond. The compact design allows a strong filter effect in the smallest place.Filtomatic 14000...

  • oase filtomatic 7000

    Oase

    Oase Filtomatic 7000 Clear Water Pond Filter System

    Oase Filtomatic CWS 7000 Pond Filter The Oase filtomatic 7000 offers an affordable intelligent filtration system for the garden pond. The compact design allows a strong filter effect in the smallest place.Filtomatic 7000 dimensions: 380x380x520mm...

  • On Sale! Save 20%
    Oase Biotec Screenmatic 60000² And 140000²  Filter Foam Set Blue x 2

    Oase

    Oase Biotec Screenmatic 60000² And 140000² Filter Foam Set Blue x 2

    Replacement blue foam set Oase Biotec Screenmatic 60000²/ 140000² Replacement foams to fit the Oase Biotec Screenmatic 60000² (57695) Oase Screenmatic 140000² (57696) Oase Biotec Sreenmatic 18 (57214) Oase Biotec Screenmatic 36...

    MSRP: £43.99
    Was: £43.99
    Now: £34.99
    £34.99
  • On Sale! Save 23%
    Oase Biotec Screenmatic 60000² And 140000²  Filter Foam Set Purple / Red

    Oase

    Oase Biotec Screenmatic 60000² And 140000² Filter Foam Set Purple / Red

    Replacement purple & red foam set Oase Biotec Screenmatic 60000²/ 140000² Replacement foams to fit the Oase Biotec Screenmatic 60000² (57695) Oase Screenmatic 140000² (57696) Oase Biotec Sreenmatic 18 (57214) Oase Biotec...

    MSRP: £58.99
    Was: £58.99
    Now: £44.99
    £44.99
  • On Sale! Save 21%
    Oase Biotec Screenmatic 40000² Replacement Filter Foam Set Blue x 2

    Oase

    Oase Biotec Screenmatic 40000² Replacement Filter Foam Set Blue x 2

    Replacement blue foam set Oase Biotec Screenmatic 40000² Replacement foams to fit the Oase Biotec Screenmatic² 40000 (57694) Oase Biotec Screenmatic 12 (57213) Oase part number: 42895 Pack of two

    MSRP: £36.99
    Was: £36.99
    Now: £28.99
    £28.99
  • On Sale! Save 20%
    Oase Biotec Screenmatic 40000² Replacement Filter Foam Set Purple / Red

    Oase

    Oase Biotec Screenmatic 40000² Replacement Filter Foam Set Purple / Red

    Replacement purple & red foam set Oase Biotec Screenmatic 40000² Replacement foams to fit the Oase Biotec Screenmatic 40000² (57694) Oase Biotec Sreenmatic 12 (57213) Oase part number: 42893

    MSRP: £49.99
    Was: £49.99
    Now: £39.99
    £39.99
  • 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

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