For Sale UK

External filter

4

External filter for sale on largest auction and classifieds sites

Home / Tool Accessories / External filter refurbished & used for sale | For Sale UK
Fluval fx4 canister - @,

Fluval fx4 canister - @,

£135.90
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Aquarium fish tank external - tank,

Aquarium fish tank external - tank,

£84.99
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Aquarium fish tank external - tank,

Aquarium fish tank external - tank,

£34.99
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Aquarium fish tank external - fish,

Aquarium fish tank external - fish,

£84.99
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Fluval207 external aquarium - fluval207,

Fluval207 external aquarium - fluval207,

£65.60
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Aquarium fish tank external

Aquarium fish tank external

£64.99
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Fluval fx5 external canister - fluval,

Fluval fx5 external canister - fluval,

£156.70
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Hidom external aquarium filter - hidom,

Hidom external aquarium filter - hidom,

£12.95
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Hang external filter - on,

Hang external filter - on,

£14.99
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Fluval external filter 107 207 - fluval,

Fluval external filter 107 207 - fluval,

£124.99
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Filter floss wool media roll - floss,

Filter floss wool media roll - floss,

£24.99
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Octo regal 150 marine - regal,

Octo regal 150 marine - regal,

£260.70
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External aquarium canister - aquarium,

External aquarium canister - aquarium,

£12.99
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External aquarium canister - external,

External aquarium canister - external,

£69.99
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Jebao external aquarium - jebao,

Jebao external aquarium - jebao,

£54.95
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Fluval 107 207 307 - , 407

Fluval 107 207 307 - , 407

£159.99
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Aquarium fish tank impeller - aquarium,

Aquarium fish tank impeller - aquarium,

£8.79
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500 800 l h aquarium - l/h, &

500 800 l h aquarium - l/h, &

£29.99
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Fish tank aquarium - tank,

Fish tank aquarium - tank,

£9.99
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All pond solutions - all,

All pond solutions - all,

£26.69
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Ultra jet professional - jet,

Ultra jet professional - jet,

£39.99
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Aquarium fish tank external - fish,

Aquarium fish tank external - fish,

£109.99
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Allpondsolutions 250 - allpondsolutions, ef-250

Allpondsolutions 250 - allpondsolutions, ef-250

£42.99
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Swell aquarium external - swell,

Swell aquarium external - swell,

£45.99
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Aquarium fish tank - fish,

Aquarium fish tank - fish,

£78.98
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Filter floss wool foam - wool, media

Filter floss wool foam - wool, media

£7.95
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External aquarium fish - external, tank

External aquarium fish - external, tank

£19.99
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400l canister pump filter - 400l/h,

400l canister pump filter - 400l/h,

£30.98
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Aquarium fish tank external

Aquarium fish tank external

£99.99
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Aquarium fish tank - aquarium,

Aquarium fish tank - aquarium,

£30.98
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Fluval 106 107 206 207 - 107,

Fluval 106 107 206 207 - 107,

£28.00
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Oase filtosmart thermo - oase,

Oase filtosmart thermo - oase,

£91.95
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Aquarium allpondsolutions 3l - aquarium, 2.3l

Aquarium allpondsolutions 3l - aquarium, 2.3l

£19.99
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Aquarium fish tank external - fish,

Aquarium fish tank external - fish,

£94.99
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Fluval 307 external - fluval,

Fluval 307 external - fluval,

£159.99
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Sunsun ybf 500 aquarium fish - sunsun-ybf,

Sunsun ybf 500 aquarium fish - sunsun-ybf,

£59.99
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Fluval 207 external power - 207,

Fluval 207 external power - 207,

£124.99
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Hidom hang back - hidom, for

Hidom hang back - hidom, for

£5.99
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Fluval motor head maintenance - fluval,

Fluval motor head maintenance - fluval,

£35.95
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Aquarium fish tank external

Aquarium fish tank external

£74.98
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Fluval 307 external canister - fluval,

Fluval 307 external canister - fluval,

£78.70
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External canister filter - external,

External canister filter - external,

£6.49
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Hidom aquarium external - hidom,

Hidom aquarium external - hidom,

£62.95
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Seachem tidal hang power - tidal, hang-on

Seachem tidal hang power - tidal, hang-on

£49.99
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Fish tank aquarium - tank,

Fish tank aquarium - tank,

£8.99
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Aquarium external fish tank - aquarium,

Aquarium external fish tank - aquarium,

£15.89
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Aquarium fish tank - tank, spare

Aquarium fish tank - tank, spare

£43.99
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Aquarium fish tank - aquarium,

Aquarium fish tank - aquarium,

£8.99
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External aquarium filter media - aquarium,

External aquarium filter media - aquarium,

£12.99
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Aquarium fish tank external - tank,

Aquarium fish tank external - tank,

£74.99
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Aquarium allpondsolutions 2l - allpondsolutions, 1.2l

Aquarium allpondsolutions 2l - allpondsolutions, 1.2l

£16.99
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Oase filtosmart 100 - oase, 60

Oase filtosmart 100 - oase, 60

£46.75
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Fluval 307 external filter - fluval,

Fluval 307 external filter - fluval,

£159.99
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Fluval external filter - fluval,

Fluval external filter - fluval,

£53.99
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Oase filtosmart external - oase,

Oase filtosmart external - oase,

£74.95
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Eheim external canister fish - eheim,

Eheim external canister fish - eheim,

£13.85
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Aquarium fish tank external - tank,

Aquarium fish tank external - tank,

£79.90
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Fluval external filter with - fluval,

Fluval external filter with - fluval,

£156.99
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Aquamanta efx 200 - 200, external

Aquamanta efx 200 - 200, external

£50.00
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Eheim classic 350 600 - eheim, 350/600+

Eheim classic 350 600 - eheim, 350/600+

£168.99
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External aquarium fish tank - external,

External aquarium fish tank - external,

£16.99
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Evolution aqua micro filter - aqua,

Evolution aqua micro filter - aqua,

£118.95
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Fish tank aquarium - fish,

Fish tank aquarium - fish,

£8.99
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Sunsun 3000l external - sunsun, 3000l/h

Sunsun 3000l external - sunsun, 3000l/h

£159.69
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Cleartides phyto phytoplankton - cleartides,

Cleartides phyto phytoplankton - cleartides,

£40.22
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Eheim ecco pro 200 external - pro,

Eheim ecco pro 200 external - pro,

£64.99
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Aquarium external canister - external,

Aquarium external canister - external,

£43.36
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Aqua one ocellaris external - aqua,

Aqua one ocellaris external - aqua,

£147.99
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Oase filtosmart external - oase,

Oase filtosmart external - oase,

£39.95
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Hidom external aquarium hang - hidom,

Hidom external aquarium hang - hidom,

£7.95
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Eheim professional 250 - professional,

Eheim professional 250 - professional,

£259.95
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Aquael hypermax 4500 - aquael, with

Aquael hypermax 4500 - aquael, with

£384.95
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Filter floss wool foam - filter,

Filter floss wool foam - filter,

£8.99
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Activated carbon 4mm granular - activated,

Activated carbon 4mm granular - activated,

£365.00
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Jebao 503 external canister - 503,

Jebao 503 external canister - 503,

£28.00
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Jebao external aquarium - aquarium, filter

Jebao external aquarium - aquarium, filter

£69.95
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Eheim substrat pro 250ml 2l - 250ml,

Eheim substrat pro 250ml 2l - 250ml,

£36.95
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Fish tank allpondsolutions - fish,

Fish tank allpondsolutions - fish,

£44.99
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Eheim black tubing and

Eheim black tubing and

£8.99
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Jbl symec external - symec,

Jbl symec external - symec,

£6.30
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400l canister pump filter - 400l/h,

400l canister pump filter - 400l/h,

£33.97
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Allpondsolutions external - allpondsolutions,

Allpondsolutions external - allpondsolutions,

£14.99
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Fluval 107 external - fluval,

Fluval 107 external - fluval,

£89.10
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Oase biomaster external - oase,

Oase biomaster external - oase,

£170.99
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Aquarium fish tank spare - fish,

Aquarium fish tank spare - fish,

£32.99
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5kg biohome ultimate - biohome,

5kg biohome ultimate - biohome,

£63.10
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Superfish hang filter 50 - superfish,

Superfish hang filter 50 - superfish,

£24.65
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Superfish hang filter - hang-on,

Superfish hang filter - hang-on,

£23.99
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Compatible fluval bio - fluval, bio-foam

Compatible fluval bio - fluval, bio-foam

£6.99
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Refugium nano full - refugium, kit

Refugium nano full - refugium, kit

£73.50
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Oase biomaster external - 2,

Oase biomaster external - 2,

£219.95
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Aquarium external canister - aquarium,

Aquarium external canister - aquarium,

£13.95
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Eheim black ecco - ecco, 130

Eheim black ecco - ecco, 130

£104.02
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Replacement aquarium external - replacement,

Replacement aquarium external - replacement,

£11.99
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Fluval external filter with - external,

Fluval external filter with - external,

£124.99
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Fluval 107 performance - 107,

Fluval 107 performance - 107,

£94.30
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Looking for more external filter?

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📊96 listings · from £5.99 · avg £70.81
⚠️ These listings were last updated more than 8 days ago. Search for fresh listings

Browse 96 external filter listings currently in our index. Prices range from £5.99 to £384.95, with an average of £70.81. 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 external filter →

Try this: external fish tank filter | fluval 205 | fluval 306 | fluval 403 | fluval 405 | fluval 406 | fluval 406 external filter | fluval external filter | fluval fx6 filter | fx6 filter

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Everything you need to know about external filter

Whether you are looking for a brand-new or second-hand external 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 £5.99, while premium listings can reach £384.95 — giving you a wide budget spread to work with. The average price of £70.81 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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