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Auto cleaning pressurised - auto,

Auto cleaning pressurised - auto,

£349.99
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Pressurised koi pond filter - koi,

Pressurised koi pond filter - koi,

£199.99
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Japanese matting jap mat pond - matting,

Japanese matting jap mat pond - matting,

£54.99
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Filter pump jebao pond - pump, friend

Filter pump jebao pond - pump, friend

£79.99
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Kockney koi black box filter - kockney,

Kockney koi black box filter - kockney,

£60.99
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Bakki shower trickle filter - bakki,

Bakki shower trickle filter - bakki,

£185.00
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Bakki shower trickle filter - trickle,

Bakki shower trickle filter - trickle,

£189.99
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Jebao cbf pressure pond - pressure, filter

Jebao cbf pressure pond - pressure, filter

£149.95
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Pressurised koi pond filter - koi, uv

Pressurised koi pond filter - koi, uv

£369.99
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Small fish pond - pond, water

Small fish pond - pond, water

£59.99
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Allpondsolutions 6000l koi - 6000l,

Allpondsolutions 6000l koi - 6000l,

£89.99
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Allpondsolutions koi pond - koi,

Allpondsolutions koi pond - koi,

£389.99
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Pond pump filter - pond,

Pond pump filter - pond,

£429.99
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Pond aquarium uv - /,

Pond aquarium uv - /,

£39.99
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Jebao pond filter pf10e - jebao, uv

Jebao pond filter pf10e - jebao, uv

£79.95
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Koi pond water - for, fish

Koi pond water - for, fish

£23.00
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Black flexible pond hose - flexible,

Black flexible pond hose - flexible,

£49.99
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Allpondsolutions auto cleaning - allpondsolutions,

Allpondsolutions auto cleaning - allpondsolutions,

£249.99
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Kockney koi mega black - kockney,

Kockney koi mega black - kockney,

£78.95
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Cbf range pond filter foams - range,

Cbf range pond filter foams - range,

£8.49
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Pond moving bed - pond, media

Pond moving bed - pond, media

£11.99
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Evolution aqua tempest - evolution,

Evolution aqua tempest - evolution,

£299.95
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Oase biosmart koi pond - pond, filter

Oase biosmart koi pond - pond, filter

£504.44
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Aqua eco pond pump low - eco,

Aqua eco pond pump low - eco,

£159.99
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Bermuda pond pressure - bermuda,

Bermuda pond pressure - bermuda,

£124.99
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Allpondsolutions 12000l koi - allpondsolutions,

Allpondsolutions 12000l koi - allpondsolutions,

£179.99
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400 micron mesh - mesh, long

400 micron mesh - mesh, long

£10.99
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Basic mega filter - mega,

Basic mega filter - mega,

£64.04
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Submersible pond pump - submersible,

Submersible pond pump - submersible,

£115.99
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Complete koi fish box filter - complete,

Complete koi fish box filter - complete,

£98.99
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Swell pond filter box - box, kit

Swell pond filter box - box, kit

£289.99
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Swell pressure filter - uk,

Swell pressure filter - uk,

£153.99
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Aquarium pond filter wool - aquarium,

Aquarium pond filter wool - aquarium,

£79.99
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Oase pontec multiclear filter - oase,

Oase pontec multiclear filter - oase,

£208.99
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Auto cleaning pressurised koi - auto,

Auto cleaning pressurised koi - auto,

£319.99
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Kockney koi kk1000 - kockney, filter

Kockney koi kk1000 - kockney, filter

£21.50
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Pond koi filter media bio - filter,

Pond koi filter media bio - filter,

£69.99
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Fish mate pbio 15000l - mate,

Fish mate pbio 15000l - mate,

£105.45
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Swell pond filter box - box, premium

Swell pond filter box - box, premium

£379.99
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Jebao pond friend pump - jebao,

Jebao pond friend pump - jebao,

£84.99
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Evolution aqua pure sludge - evolution,

Evolution aqua pure sludge - evolution,

£14.95
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Stage hma high flow - hma,

Stage hma high flow - hma,

£56.04
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Aquarium pond filter - aquarium, wool

Aquarium pond filter - aquarium, wool

£43.49
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Pump pre filter koi - pump, pre-filter

Pump pre filter koi - pump, pre-filter

£34.99
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Automatic backwash rotary drum - automatic,

Automatic backwash rotary drum - automatic,

£521.88
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Jebo low noise - jebo, pond

Jebo low noise - jebo, pond

£139.99
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Blow air pump - blow,

Blow air pump - blow,

£129.90
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Japanese matting high quality - japanese,

Japanese matting high quality - japanese,

£20.95
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Media sacks pond koi - media, filter

Media sacks pond koi - media, filter

£5.85
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Bermuda filter force pond - bermuda,

Bermuda filter force pond - bermuda,

£135.99
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Pondxpert filtobox pond - filtobox,

Pondxpert filtobox pond - filtobox,

£199.99
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Filter matt japanese - matt,

Filter matt japanese - matt,

£8.95
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Kockney koi yamitsu filter - yamitsu,

Kockney koi yamitsu filter - yamitsu,

£9.09
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Kockney koi pond - pond, filter

Kockney koi pond - pond, filter

£6.59
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Fish mate pbio 15000l - mate,

Fish mate pbio 15000l - mate,

£99.99
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Bermuda pond skimmer 3000 - pond, lph

Bermuda pond skimmer 3000 - pond, lph

£58.99
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Pondxpert spinclean pond - pondxpert,

Pondxpert spinclean pond - pondxpert,

£199.99
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Allpondsolutions pond koi - allpondsolutions,

Allpondsolutions pond koi - allpondsolutions,

£11.99
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Bermuda pond filter pump - bermuda, filter,

Bermuda pond filter pump - bermuda, filter,

£116.40
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Evolution aqua pond surge - aqua,

Evolution aqua pond surge - aqua,

£418.95
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Set kockney koi foam - kockney, sponge

Set kockney koi foam - kockney, sponge

£9.99
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50mm kockney koi - 50mm, pre

50mm kockney koi - 50mm, pre

£14.99
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Hozelock aquaforce pond filter - hozelock,

Hozelock aquaforce pond filter - hozelock,

£234.90
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Kockney koi yamitsu mega - mega, pond

Kockney koi yamitsu mega - mega, pond

£79.99
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Kockney koi pond - koi, filter

Kockney koi pond - koi, filter

£8.95
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Kockney koi yamitsu mega - koi, black

Kockney koi yamitsu mega - koi, black

£168.99
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Evolution aqua eazypod green - aqua,

Evolution aqua eazypod green - aqua,

£499.95
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Hozelock ecocel 5000 fish pond - hozelock,

Hozelock ecocel 5000 fish pond - hozelock,

£84.95
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50cm koi pond - pond, filter

50cm koi pond - pond, filter

£23.79
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Kockney koi yamitsu small fish - kockney,

Kockney koi yamitsu small fish - kockney,

£59.95
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Pressurised pond filter - pressurised,

Pressurised pond filter - pressurised,

£7.99
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Fish mate pressurised - mate, filter

Fish mate pressurised - mate, filter

£152.95
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Evolution aqua eazypod auto - aqua,

Evolution aqua eazypod auto - aqua,

£789.95
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Automatic backwash - automatic,

Automatic backwash - automatic,

£528.88
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Koi pond dual - dual, filter

Koi pond dual - dual, filter

£179.99
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Oase pontec pondopress filter - pontec,

Oase pontec pondopress filter - pontec,

£138.95
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Koi pond dechlorinator - koi, water

Koi pond dechlorinator - koi, water

£29.99
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Fish mate pond - mate, filter

Fish mate pond - mate, filter

£159.95
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Aquati year replacement koi - aquati,

Aquati year replacement koi - aquati,

£29.95
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Aquati stage hma high - high, flow

Aquati stage hma high - high, flow

£16.95
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Labs pond mature live - labs,

Labs pond mature live - labs,

£13.95
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Alfagrog pond biological - alfagrog,

Alfagrog pond biological - alfagrog,

£34.95
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Cloverleaf sludge answer - cloverleaf,

Cloverleaf sludge answer - cloverleaf,

£64.50
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Evolution aqua pond bomb - evolution,

Evolution aqua pond bomb - evolution,

£14.95
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New hozelock ecopower pond - hozelock,

New hozelock ecopower pond - hozelock,

£179.95
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Hozelock ecocel pond filter - hozelock,

Hozelock ecocel pond filter - hozelock,

£86.99
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Fountain eco pond pump - fountain,

Fountain eco pond pump - fountain,

£64.99
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Filter floss wool foam media - filter,

Filter floss wool foam media - filter,

£6.95
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Fish mate bio 5000 litres - mate,

Fish mate bio 5000 litres - mate,

£35.49
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Koi fish ponds - 2x,

Koi fish ponds - 2x,

£11.95
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Pond filter brushes - pond,

Pond filter brushes - pond,

£8.99
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Hozelock ecopower pond filter - ecopower,

Hozelock ecopower pond filter - ecopower,

£144.84
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Oase filtral all - oase,

Oase filtral all - oase,

£159.99
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Filter media grid egg - egg, crate

Filter media grid egg - egg, crate

£11.50
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Aps koi fish pond triple - aps,

Aps koi fish pond triple - aps,

£274.99
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Kockney koi kk1000 pond - pond, bio

Kockney koi kk1000 pond - pond, bio

£64.49
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📊96 listings · from £5.85 · avg £136.08

Browse 96 koi filter listings currently in our index. Prices range from £5.85 to £789.95, with an average of £136.08. 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 £5.85, while premium listings can reach £789.95 — giving you a wide budget spread to work with. The average price of £136.08 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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