For Sale UK
Home / Fish & Aquarium / External filter refurbished & used for sale | For Sale UK

External filter

4

External filter for sale on Ireland's largest auction and classifieds sites

Aquarium fish tank external - fish,

Aquarium fish tank external - fish,

£84.99 · Buy It Now

» View details on eBay
Aquarium fish tank external - tank,

Aquarium fish tank external - tank,

£84.99 · Buy It Now

» View details on eBay
Aquarium fish tank external - aquarium,

Aquarium fish tank external - aquarium,

£34.99 · Buy It Now

» View details on eBay
Aquarium fish tank external - aquarium,

Aquarium fish tank external - aquarium,

£59.99 · Buy It Now

» View details on eBay
Hidom external aquarium filter - external,

Hidom external aquarium filter - external,

£69.95 · Buy It Now

» View details on eBay
Seachem tidal filter - tidal,

Seachem tidal filter - tidal,

£38.95 · Buy It Now

» View details on eBay
External aquarium fish tank - fish,

External aquarium fish tank - fish,

£19.99 · Buy It Now

» View details on eBay
Allpondsolutions 250 - allpondsolutions, ef-250

Allpondsolutions 250 - allpondsolutions, ef-250

£42.99 · Buy It Now

» View details on eBay
Allpondsolutions 500l hang - allpondsolutions,

Allpondsolutions 500l hang - allpondsolutions,

£29.99 · Buy It Now

» View details on eBay
Fluval external filter 107 - external,

Fluval external filter 107 - external,

£305.99 · Buy It Now

» View details on eBay
All pond solutions 1000ef - all,

All pond solutions 1000ef - all,

£36.13 · Buy It Now

» View details on eBay
Aqua one ocellaris external - one,

Aqua one ocellaris external - one,

£147.99 · Buy It Now

» View details on eBay
Fluval external filter with - fluval,

Fluval external filter with - fluval,

£249.95 · Buy It Now

» View details on eBay
Aquarium fish tank external - aquarium,

Aquarium fish tank external - aquarium,

£109.99 · Buy It Now

» View details on eBay
External aquarium canister - external,

External aquarium canister - external,

£7.49 · Buy It Now

» View details on eBay
Oase biomaster thermo 350 - biomaster,

Oase biomaster thermo 350 - biomaster,

£150.00 · Buy It Now

» View details on eBay
Oase biomaster external - 2,

Oase biomaster external - 2,

£223.95 · Buy It Now

» View details on eBay
Hidom hang back filter - back,

Hidom hang back filter - back,

£5.99 · Buy It Now

» View details on eBay
Jebao external aquarium - jebao,

Jebao external aquarium - jebao,

£69.99 · Buy It Now

» View details on eBay
Aquarium fish tank external

Aquarium fish tank external

£64.99 · Buy It Now

» View details on eBay
Oase biomaster thermo 250 - biomaster,

Oase biomaster thermo 250 - biomaster,

£99.50 · Buy It Now

» View details on eBay
External canister filter - external,

External canister filter - external,

£6.49 · Buy It Now

» View details on eBay
Oase biomaster external - biomaster, 2

Oase biomaster external - biomaster, 2

£171.49 · Buy It Now

» View details on eBay
225gph ultra quiet canister - ultra-quiet,

225gph ultra quiet canister - ultra-quiet,

£70.00 · Buy It Now

» View details on eBay
Hang external filter - hang,

Hang external filter - hang,

£13.99 · Buy It Now

» View details on eBay
Fluval 107 207 - , 407

Fluval 107 207 - , 407

£216.99 · Buy It Now

» View details on eBay
Oase filtosmart 100 - 60,

Oase filtosmart 100 - 60,

£76.90 · Buy It Now

» View details on eBay
Filter floss wool foam - filter,

Filter floss wool foam - filter,

£34.49 · Buy It Now

» View details on eBay
Aquarium fish tank external - fish,

Aquarium fish tank external - fish,

£99.99 · Buy It Now

» View details on eBay
Fluval external canister - fluval,

Fluval external canister - fluval,

£156.70 · Buy It Now

» View details on eBay
Oase filtosmart thermo - oase,

Oase filtosmart thermo - oase,

£105.99 · Buy It Now

» View details on eBay
Fluval fx4 external - fx4,

Fluval fx4 external - fx4,

£247.99 · Buy It Now

» View details on eBay
Aquarium external canister - aquarium,

Aquarium external canister - aquarium,

£66.95 · Buy It Now

» View details on eBay
Aquarium fish tank external - fish,

Aquarium fish tank external - fish,

£99.99 · Buy It Now

» View details on eBay
Canister pump filter full - pump, set

Canister pump filter full - pump, set

£32.98 · Buy It Now

» View details on eBay
Swell aquarium external filter - swell,

Swell aquarium external filter - swell,

£45.99 · Buy It Now

» View details on eBay
Eheim external canister fish - canister,

Eheim external canister fish - canister,

£13.85 · Buy It Now

» View details on eBay
Oase biomaster thermo 250 - thermo,

Oase biomaster thermo 250 - thermo,

£104.70 · Buy It Now

» View details on eBay
Sunsun 3000l external - 3000l/h,

Sunsun 3000l external - 3000l/h,

£179.99 · Buy It Now

» View details on eBay
Finest filters replacement - finest-filters,

Finest filters replacement - finest-filters,

£7.49 · Buy It Now

» View details on eBay
Allpondsolutions ef - allpondsolutions,

Allpondsolutions ef - allpondsolutions,

£19.99 · Buy It Now

» View details on eBay
Allpondsolutions external - allpondsolutions,

Allpondsolutions external - allpondsolutions,

£14.99 · Buy It Now

» View details on eBay
Fluval external filter with - fluval,

Fluval external filter with - fluval,

£169.99 · Buy It Now

» View details on eBay
Jebao external aquarium - external,

Jebao external aquarium - external,

£69.95 · Buy It Now

» View details on eBay
Aqua one ocellaris external - one,

Aqua one ocellaris external - one,

£134.99 · Buy It Now

» View details on eBay
Fluval fx6 external canister - fx6,

Fluval fx6 external canister - fx6,

£305.99 · Buy It Now

» View details on eBay
Jebao external aquarium - external,

Jebao external aquarium - external,

£54.95 · Buy It Now

» View details on eBay
Aquarium fish tank external

Aquarium fish tank external

£74.98 · Buy It Now

» View details on eBay

Looking for more external filter?

Search eBay live — fresh results filtered for the best value, updated every hour.

🔍 Search live deals
📊48 listings · from £5.99 · avg £94.53

Browse 48 external filter listings currently in our index. Prices range from £5.99 to £305.99, with an average of £94.53. 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 | fish fry | fish tank air pump | fish tank caves | fish tank coffee table | fish tank kit | fish tank sand | fish tank stand | fluval 306 | fluval 405

Shop by budget

< £25 £25 – £50 £50 – £100 £100 – £200 £200 – £500 > £500

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 48 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 £305.99 — giving you a wide budget spread to work with. The average price of £94.53 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.

🔍 external filter Search live on eBay