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External aquarium filters

4

External aquarium filters for sale on largest auction and classifieds sites

Home / Tool Accessories / External aquarium filters refurbished & used for sale | For Sale UK
Aquarium fish tank - tank, external

Aquarium fish tank - tank, external

£99.99
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External aquarium canister - aquarium,

External aquarium canister - aquarium,

£59.99
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Aquarium fish tank external - aquarium,

Aquarium fish tank external - aquarium,

£34.99
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Allpondsolutions 250 - allpondsolutions, ef-250

Allpondsolutions 250 - allpondsolutions, ef-250

£42.99
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Fluval external canister - fx,

Fluval external canister - fx,

£160.00
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Hidom external aquarium filter - hidom,

Hidom external aquarium filter - hidom,

£59.95
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Aquarium fish tank external

Aquarium fish tank external

£64.99
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Eheim reeflexuv 500 uv - reeflexuv, 9w

Eheim reeflexuv 500 uv - reeflexuv, 9w

£57.90
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Sponge filter - sponge,

Sponge filter - sponge,

£5.45
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Sunsun ybf 500 - sunsun-ybf,

Sunsun ybf 500 - sunsun-ybf,

£59.99
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Hidom hang back filter - hidom,

Hidom hang back filter - hidom,

£6.95
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Hidom external aquarium hang - hidom,

Hidom external aquarium hang - hidom,

£10.95
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External aquarium canister - external,

External aquarium canister - external,

£12.99
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Jebao external aquarium - jebao,

Jebao external aquarium - jebao,

£64.95
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Fluval 107 207 307 - , 407

Fluval 107 207 307 - , 407

£124.99
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Aquarium fish tank external - aquarium,

Aquarium fish tank external - aquarium,

£94.99
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External aquarium fish tank - external,

External aquarium fish tank - external,

£19.99
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Aquarium fish tank external - tank,

Aquarium fish tank external - tank,

£74.99
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Aquarium fish tank - fish, external

Aquarium fish tank - fish, external

£84.99
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Aquarium fish tank external - aquarium,

Aquarium fish tank external - aquarium,

£109.99
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Aquarium fish tank impeller - aquarium,

Aquarium fish tank impeller - aquarium,

£8.79
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Aquael hypermax 4500 - hypermax,

Aquael hypermax 4500 - hypermax,

£384.95
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Hidom aquarium external - hidom,

Hidom aquarium external - hidom,

£64.95
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Oase biomaster external - 2,

Oase biomaster external - 2,

£219.95
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Aquarium fish tank spare - fish,

Aquarium fish tank spare - fish,

£43.99
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Fluval 306 external canister - external,

Fluval 306 external canister - external,

£63.10
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Oase filtosmart external - filtosmart,

Oase filtosmart external - filtosmart,

£74.95
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Hang external filter - on,

Hang external filter - on,

£14.99
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Sunsun 3000l external - sunsun, 3000l/h

Sunsun 3000l external - sunsun, 3000l/h

£159.69
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Hidom biological internal - hidom,

Hidom biological internal - hidom,

£14.45
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Sunsun external canister - sunsun,

Sunsun external canister - sunsun,

£158.99
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Aquarium fish tank spare - fish,

Aquarium fish tank spare - fish,

£38.49
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Aquarium pond filter wool - pond,

Aquarium pond filter wool - pond,

£25.49
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Oase filtosmart thermo - filtosmart,

Oase filtosmart thermo - filtosmart,

£68.30
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Fluval external filter 107 207 - fluval,

Fluval external filter 107 207 - fluval,

£109.99
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Fluval 407 external - 407, aquarium

Fluval 407 external - 407, aquarium

£130.70
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Filter floss wool - floss, media

Filter floss wool - floss, media

£8.45
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Super aquatic 501 aquarium - super,

Super aquatic 501 aquarium - super,

£11.99
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Aqua one aquis advance 1050 - aqua,

Aqua one aquis advance 1050 - aqua,

£99.99
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Superfish aqua flow - superfish,

Superfish aqua flow - superfish,

£19.99
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Fluval 205 external aquarium - external,

Fluval 205 external aquarium - external,

£73.45
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Fish tank allpondsolutions - fish,

Fish tank allpondsolutions - fish,

£84.99
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Oase filtosmart thermo - filtosmart,

Oase filtosmart thermo - filtosmart,

£91.95
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Swell aquarium external filter - swell,

Swell aquarium external filter - swell,

£45.99
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Fluval spray bar kit for - fluval,

Fluval spray bar kit for - fluval,

£15.75
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Fluval external filter media - filter,

Fluval external filter media - filter,

£52.99
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Aquarium fish tank external - fish,

Aquarium fish tank external - fish,

£79.90
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Jebao external aquarium fish - external,

Jebao external aquarium fish - external,

£69.99
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Superfish hang filter - superfish,

Superfish hang filter - superfish,

£23.99
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Betta canister filter external - betta,

Betta canister filter external - betta,

£11.99
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Hang back aquarium - hang,

Hang back aquarium - hang,

£43.99
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Fluval fx6 external - fluval, aquarium

Fluval fx6 external - fluval, aquarium

£289.99
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Compatible fluval 100g carbon - compatible,

Compatible fluval 100g carbon - compatible,

£22.99
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Aquarium allpondsolutions 3l - allpondsolutions, 2.3l

Aquarium allpondsolutions 3l - allpondsolutions, 2.3l

£19.99
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Filter floss wool - ,

Filter floss wool - ,

£12.99
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Fluval 307 external - fluval,

Fluval 307 external - fluval,

£159.99
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Fluval 207 external power - fluval,

Fluval 207 external power - fluval,

£124.99
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Aquarium fish tank hang - fish,

Aquarium fish tank hang - fish,

£32.99
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Aquarium fish tank spare - spare, green

Aquarium fish tank spare - spare, green

£19.99
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Aquarium allpondsolutions 2l - aquarium,

Aquarium allpondsolutions 2l - aquarium,

£16.99
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Sicce space eko - space, eko+

Sicce space eko - space, eko+

£74.95
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Allpondsolutions external - allpondsolutions,

Allpondsolutions external - allpondsolutions,

£14.99
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500 800 l - 800, l/h

500 800 l - 800, l/h

£29.99
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Compact slim filter s10 - compact,

Compact slim filter s10 - compact,

£30.99
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External filtration canister - filtration,

External filtration canister - filtration,

£40.99
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Fish tank allpondsolutions - fish,

Fish tank allpondsolutions - fish,

£44.99
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Fluval 103 external aquarium - fluval,

Fluval 103 external aquarium - fluval,

£39.99
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Oase indoor filtosmart - oase,

Oase indoor filtosmart - oase,

£46.69
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External canister filter - canister,

External canister filter - canister,

£7.49
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Aqua one ocellaris external - ocellaris,

Aqua one ocellaris external - ocellaris,

£119.99
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Arcadia polyfilter pad - arcadia,

Arcadia polyfilter pad - arcadia,

£61.99
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Fluval external filter - fluval,

Fluval external filter - fluval,

£249.99
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Oase filtosmart 100 200 300 - 200,

Oase filtosmart 100 200 300 - 200,

£46.75
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Professional aquarium - professional,

Professional aquarium - professional,

£24.62
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400l canister pump filter - canister,

400l canister pump filter - canister,

£33.97
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Betta choice external canister - external,

Betta choice external canister - external,

£68.99
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Jebao 403 external aquarium - jebao,

Jebao 403 external aquarium - jebao,

£69.95
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Seachem tidal hang power - hang-on,

Seachem tidal hang power - hang-on,

£39.99
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Fish tank 1400l - fish, aquarium

Fish tank 1400l - fish, aquarium

£84.99
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Usb aquarium filter - aquarium, 250l/h

Usb aquarium filter - aquarium, 250l/h

£13.99
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Aquarium fish tank external

Aquarium fish tank external

£74.98
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Superfish hang aquarium - superfish,

Superfish hang aquarium - superfish,

£18.79
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Superfish hang filter - superfish, hang-on

Superfish hang filter - superfish, hang-on

£18.90
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Fluval spray bar - spray, kit

Fluval spray bar - spray, kit

£16.99
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Oase biomaster external - oase,

Oase biomaster external - oase,

£223.95
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400l canister pump filter - pump,

400l canister pump filter - pump,

£30.98
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Aquarium fish tank - , external

Aquarium fish tank - , external

£99.99
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1set aquarium inlet outlet - inlet,

1set aquarium inlet outlet - inlet,

£12.99
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Aquarium fish tank external - fish,

Aquarium fish tank external - fish,

£78.98
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Aquamanta efx 400 external - aquamanta,

Aquamanta efx 400 external - aquamanta,

£104.70
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1set aquarium inlet outlet - aquarium,

1set aquarium inlet outlet - aquarium,

£12.59
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Aquarium fish tank external - fish,

Aquarium fish tank external - fish,

£94.99
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Fish tank aquarium - tank,

Fish tank aquarium - tank,

£8.99
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Allpondsolutions spare filter - allpondsolutions,

Allpondsolutions spare filter - allpondsolutions,

£10.99
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Fluval mini u3 u4 - fluval, mini,u1,u2,u3,u4

Fluval mini u3 u4 - fluval, mini,u1,u2,u3,u4

£29.99
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Internal fish tank filter 5 - filter,,

Internal fish tank filter 5 - filter,,

£17.65
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Looking for more external aquarium filters?

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📊96 listings · from £5.45 · avg £65.34
⚠️ These listings were last updated more than 19 days ago. Search for fresh listings

Browse 96 external aquarium filters listings currently in our index. Prices range from £5.45 to £384.95, with an average of £65.34. 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 aquarium filters →

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Everything you need to know about external aquarium filters

Whether you are looking for a brand-new or second-hand external aquarium filters, 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 £5.45, while premium listings can reach £384.95 — giving you a wide budget spread to work with. The average price of £65.34 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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