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Koi filter

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Home / Garden & Patio / Koi filter refurbished & used for sale | For Sale UK
Auto cleaning pressurised koi - auto,

Auto cleaning pressurised koi - auto,

£749.99 · Buy It Now

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Pressurised koi pond filter - pressurised,

Pressurised koi pond filter - pressurised,

£649.99 · Buy It Now

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Pond dechlorinator water - pond,

Pond dechlorinator water - pond,

£23.00 · Buy It Now

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Japanese matting jap mat - jap, pond

Japanese matting jap mat - jap, pond

£59.99 · Buy It Now

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Kockney koi black - black, box

Kockney koi black - black, box

£60.99 · Buy It Now

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Pond moving bed filter - bed, media

Pond moving bed filter - bed, media

£49.99 · Buy It Now

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Aquarium pond filter - aquarium,

Aquarium pond filter - aquarium,

£64.99 · Buy It Now

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Cbf range pond filter - range, foams

Cbf range pond filter - range, foams

£8.49 · Buy It Now

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Kockney koi pond filter - kockney,

Kockney koi pond filter - kockney,

£6.39 · Buy It Now

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Kockney koi mega black - mega,

Kockney koi mega black - mega,

£78.95 · Buy It Now

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Fish mate pbio - fish,

Fish mate pbio - fish,

£105.45 · Buy It Now

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Kockney koi fish pond - kockney,

Kockney koi fish pond - kockney,

£5.95 · Buy It Now

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Fish mate pressurised filter - mate,

Fish mate pressurised filter - mate,

£178.99 · Buy It Now

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Swell pond filter box kit - filter,

Swell pond filter box kit - filter,

£389.99 · Buy It Now

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Complete koi fish box filter - complete,

Complete koi fish box filter - complete,

£439.99 · Buy It Now

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Lotus green genie filter - lotus,

Lotus green genie filter - lotus,

£347.99 · Buy It Now

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Pond koi filter media - koi, bio

Pond koi filter media - koi, bio

£69.99 · Buy It Now

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Pressurised koi pond - pond, uv

Pressurised koi pond - pond, uv

£649.99 · Buy It Now

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Pond aquarium uv - aquarium, light

Pond aquarium uv - aquarium, light

£129.99 · Buy It Now

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Bakki shower trickle - shower, filter

Bakki shower trickle - shower, filter

£185.00 · Buy It Now

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Jebao submersible pond - pond, pump

Jebao submersible pond - pond, pump

£49.99 · Buy It Now

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Evolution aqua detox - aqua,

Evolution aqua detox - aqua,

£124.95 · Buy It Now

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Pressurised pond filter - pressurised,

Pressurised pond filter - pressurised,

£7.99 · Buy It Now

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Koi fish ponds - 2x,

Koi fish ponds - 2x,

£11.95 · Buy It Now

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Allpondsolutions 6000l koi - allpondsolutions,

Allpondsolutions 6000l koi - allpondsolutions,

£89.99 · Buy It Now

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Filter pump jebao pond - pump, jebao/

Filter pump jebao pond - pump, jebao/

£77.99 · Buy It Now

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Alfagrog pond biological - pond,

Alfagrog pond biological - pond,

£32.95 · Buy It Now

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1000g zeolite ammonia - 1000g,

1000g zeolite ammonia - 1000g,

£8.99 · Buy It Now

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Blow air pump aqua - eco, 65

Blow air pump aqua - eco, 65

£139.95 · Buy It Now

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Pond filter - pond,

Pond filter - pond,

£465.70 · Buy It Now

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Swell pressurised pond - swell,

Swell pressurised pond - swell,

£112.99 · Buy It Now

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Koi pond large vortex filter - vortex,

Koi pond large vortex filter - vortex,

£175.00 · Buy It Now

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Allpondsolutions 12000l koi - allpondsolutions,

Allpondsolutions 12000l koi - allpondsolutions,

£179.99 · Buy It Now

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Set kockney koi foam sponge - set,

Set kockney koi foam sponge - set,

£9.99 · Buy It Now

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Aqua eco pond pump low - aqua,

Aqua eco pond pump low - aqua,

£139.99 · Buy It Now

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Kockney koi pond - filter, mat

Kockney koi pond - filter, mat

£8.95 · Buy It Now

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Bermuda pond skimmer 3000 - pond,

Bermuda pond skimmer 3000 - pond,

£58.99 · Buy It Now

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Kockney koi yamitsu mega - kockney,

Kockney koi yamitsu mega - kockney,

£79.99 · Buy It Now

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Jebao pond clarifier - jebao, uv

Jebao pond clarifier - jebao, uv

£94.95 · Buy It Now

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Jebao pond filter pf10e - uv,

Jebao pond filter pf10e - uv,

£79.95 · Buy It Now

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Bermuda pond filter pump - bermuda, filter,

Bermuda pond filter pump - bermuda, filter,

£116.40 · Buy It Now

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Kockney koi pond - kockney,

Kockney koi pond - kockney,

£3.99 · Buy It Now

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Pond filter brushes garden koi - pond,

Pond filter brushes garden koi - pond,

£24.99 · Buy It Now

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Pond rubber connectors - pond,

Pond rubber connectors - pond,

£21.99 · Buy It Now

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Fountain eco pond pump low - fountain,

Fountain eco pond pump low - fountain,

£64.99 · Buy It Now

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Pondxpert filtobox pond - filtobox,

Pondxpert filtobox pond - filtobox,

£199.99 · Buy It Now

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Allpondsolutions koi pond - allpondsolutions,

Allpondsolutions koi pond - allpondsolutions,

£389.99 · Buy It Now

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Pond planet koi filter - pond, water

Pond planet koi filter - pond, water

£54.99 · Buy It Now

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Genuine japanese jap - japanese,

Genuine japanese jap - japanese,

£420.00 · Buy It Now

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Bermuda pond pressure filter - bermuda,

Bermuda pond pressure filter - bermuda,

£121.70 · Buy It Now

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Kockney koi yamitsu small - koi,

Kockney koi yamitsu small - koi,

£59.95 · Buy It Now

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Small fish pond water - small,

Small fish pond water - small,

£59.99 · Buy It Now

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Koi pond filter media plastic - pond,

Koi pond filter media plastic - pond,

£599.99 · Buy It Now

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Aps koi fish pond triple - koi, box

Aps koi fish pond triple - koi, box

£274.99 · Buy It Now

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Kockney koi yamitsu mega - kockney,

Kockney koi yamitsu mega - kockney,

£159.99 · Buy It Now

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Black flexible pond hose - black,

Black flexible pond hose - black,

£56.99 · Buy It Now

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Hozelock ecocel pond filter - pond,

Hozelock ecocel pond filter - pond,

£79.90 · Buy It Now

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Bermuda pond skimmer 3000 - bermuda,

Bermuda pond skimmer 3000 - bermuda,

£58.95 · Buy It Now

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Filter floss wool foam media - foam,

Filter floss wool foam media - foam,

£43.49 · Buy It Now

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Evolution aqua eazypod filter - eazypod,

Evolution aqua eazypod filter - eazypod,

£499.95 · Buy It Now

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Media sacks pond koi filter - pond,

Media sacks pond koi filter - pond,

£7.99 · Buy It Now

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Evolution aqua eazypod auto - aqua,

Evolution aqua eazypod auto - aqua,

£789.95 · Buy It Now

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Oase biosmart koi pond filter - biosmart,

Oase biosmart koi pond filter - biosmart,

£279.29 · Buy It Now

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Bakki shower trickle filter - shower,

Bakki shower trickle filter - shower,

£189.99 · Buy It Now

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New hozelock ecopower pond - hozelock,

New hozelock ecopower pond - hozelock,

£128.95 · Buy It Now

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Fish mate bio - fish, 5000

Fish mate bio - fish, 5000

£36.49 · Buy It Now

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Kockney koi yamitsu red filter - red,

Kockney koi yamitsu red filter - red,

£19.99 · Buy It Now

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Hozelock aquaforce 4000lph - hozelock,

Hozelock aquaforce 4000lph - hozelock,

£47.50 · Buy It Now

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Oase pontec pondopress - oase,

Oase pontec pondopress - oase,

£109.95 · Buy It Now

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Pond one claritec 10000uv - pond,

Pond one claritec 10000uv - pond,

£139.99 · Buy It Now

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Koi pond dual - dual, box

Koi pond dual - dual, box

£179.99 · Buy It Now

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Oase filtral all one uvc - in,

Oase filtral all one uvc - in,

£196.99 · Buy It Now

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Aquati stage hma - stage,

Aquati stage hma - stage,

£16.95 · Buy It Now

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Evolution aqua tempest - aqua,

Evolution aqua tempest - aqua,

£299.95 · Buy It Now

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Pump pre filter - pre-filter, pond

Pump pre filter - pre-filter, pond

£34.99 · Buy It Now

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Aquati year replacement - 1,

Aquati year replacement - 1,

£29.95 · Buy It Now

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Kockney koi yamitsu filter - yamitsu, /

Kockney koi yamitsu filter - yamitsu, /

£9.09 · Buy It Now

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Oase pontec multiclear filter - multiclear,

Oase pontec multiclear filter - multiclear,

£124.95 · Buy It Now

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Evolution aqua pure sludge - pure,

Evolution aqua pure sludge - pure,

£14.95 · Buy It Now

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Oase pontec multiclear filter - pontec,

Oase pontec multiclear filter - pontec,

£208.95 · Buy It Now

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Filter matt japanese media - matt,

Filter matt japanese media - matt,

£8.95 · Buy It Now

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Oase filtoclear 16000 - oase,

Oase filtoclear 16000 - oase,

£34.99 · Buy It Now

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Large inch 110mm - 4,

Large inch 110mm - 4,

£59.99 · Buy It Now

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Evolution aqua pond bomb - evolution,

Evolution aqua pond bomb - evolution,

£14.95 · Buy It Now

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Fish mate powerclenz pond - mate,

Fish mate powerclenz pond - mate,

£174.95 · Buy It Now

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High capacity koi pond - high,

High capacity koi pond - high,

£49.99 · Buy It Now

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Jebao xoe pond pump energy - xoe,

Jebao xoe pond pump energy - xoe,

£89.95 · Buy It Now

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Koi carp pond - carp', filter

Koi carp pond - carp', filter

£7.99 · Buy It Now

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Aquati koi ponds - aquati,

Aquati koi ponds - aquati,

£16.95 · Buy It Now

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110mm threaded tank - 4“/110mm,

110mm threaded tank - 4“/110mm,

£16.99 · Buy It Now

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Pond filter media foam - media, fine

Pond filter media foam - media, fine

£10.95 · Buy It Now

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Black knight pond - black, filter

Black knight pond - black, filter

£8.45 · Buy It Now

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Evolution aqua pond surge - evolution,

Evolution aqua pond surge - evolution,

£304.95 · Buy It Now

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Yamitsu spares koi - uv,

Yamitsu spares koi - uv,

£5.85 · Buy It Now

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Stage hma dechlorinator - 20",

Stage hma dechlorinator - 20",

£59.95 · Buy It Now

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Finerfilters koi pond water - pond,

Finerfilters koi pond water - pond,

£75.49 · Buy It Now

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📊96 listings · from £3.99 · avg £138.84
⚠️ These listings were last updated more than 23 days ago. Search for fresh listings

Browse 96 koi filter listings currently in our index. Prices range from £3.99 to £789.95, with an average of £138.84. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about koi filter →

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Everything you need to know about koi filter

Whether you are looking for a brand-new or second-hand koi filter, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £3.99, while premium listings can reach £789.95 — giving you a wide budget spread to work with. The average price of £138.84 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.

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