For Sale UK

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 external canister - external,

Aquarium external canister - external,

£40.99
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Fish tank filter aquarium - tank,

Fish tank filter aquarium - tank,

£37.88
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Aquarium waterfall filter pump - aquarium,

Aquarium waterfall filter pump - aquarium,

£9.80
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Vevor 528gph canister - 528gph, filter

Vevor 528gph canister - 528gph, filter

£69.21
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Aquarium external canister - external,

Aquarium external canister - external,

£42.45
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Fluval 107 performance - fluval,

Fluval 107 performance - fluval,

£80.00
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Aqua tech power aquarium - aqua-tech,

Aqua tech power aquarium - aqua-tech,

£26.95
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Tetra whisper bio bag - tetra, bio-bag

Tetra whisper bio bag - tetra, bio-bag

£19.21
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Aquarium waterfall filter pump - filter,

Aquarium waterfall filter pump - filter,

£9.98
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Aquarium external canister - external,

Aquarium external canister - external,

£48.60
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Aquaclear power filter for - aquaclear, 50

Aquaclear power filter for - aquaclear, 50

£45.99
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Aquarium waterfall filter - aquarium, pump

Aquarium waterfall filter - aquarium, pump

£9.89
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Tetra whisper power filter - iq,

Tetra whisper power filter - iq,

£40.61
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Seachem tidal external - seachem,

Seachem tidal external - seachem,

£45.50
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Sunsun canister filter - canister,

Sunsun canister filter - canister,

£229.99
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302 stage external - 3-stage,

302 stage external - 3-stage,

£119.57
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Uimoso 396gph stage external - 396gph,

Uimoso 396gph stage external - 396gph,

£67.99
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Vevor 528gph canister filter - 528gph,

Vevor 528gph canister filter - 528gph,

£69.21
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Vevor 224 5gph - 224.5gph, canister

Vevor 224 5gph - 224.5gph, canister

£65.90
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Marineland penguin 350b - marineland,

Marineland penguin 350b - marineland,

£59.99
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Fluval 207 performance - fluval,

Fluval 207 performance - fluval,

£145.00
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Bio sponge filter breeding - filter, fry

Bio sponge filter breeding - filter, fry

£9.99
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Aquarium fish tank freshwater - aquarium,

Aquarium fish tank freshwater - aquarium,

£48.60
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Roll pinky filters for - 10',

Roll pinky filters for - 10',

£14.99
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Cfs 130 aquarium canister - aquarium,

Cfs 130 aquarium canister - aquarium,

£39.95
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Uimoso 528gph stage external - 528gph,

Uimoso 528gph stage external - 528gph,

£69.21
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Vevor 396gph canister - 396gph, filter

Vevor 396gph canister - 396gph, filter

£86.90
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Fluval uvc line water - uvc, in-line

Fluval uvc line water - uvc, in-line

£69.99
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Used eheim classic 600 - used,

Used eheim classic 600 - used,

£160.00
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224 5gph stage - 224.5gph, canister

224 5gph stage - 224.5gph, canister

£92.03
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Cascade ccf3ul canister filter - cascade,

Cascade ccf3ul canister filter - cascade,

£120.00
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Vevor gallon aquarium - gallon,

Vevor gallon aquarium - gallon,

£73.90
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Aquarium hang filter pump - aquarium,

Aquarium hang filter pump - aquarium,

£9.68
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Tetra whisper bio bag - whisper, bio-bag

Tetra whisper bio bag - whisper, bio-bag

£9.82
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Tetra whisper power filter - whisper,

Tetra whisper power filter - whisper,

£37.99
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Aquariums external canister - aquariums,

Aquariums external canister - aquariums,

£44.65
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Pack aqua tech change - 6,

Pack aqua tech change - 6,

£19.98
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Aquarium waterfall filter pump - aquarium,

Aquarium waterfall filter pump - aquarium,

£11.39
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Hygger independent pump hang - hygger, independent-pump

Hygger independent pump hang - hygger, independent-pump

£53.99
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Aquarium external ultra - aquarium,

Aquarium external ultra - aquarium,

£62.26
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Marineland penguin pro - marineland, 375

Marineland penguin pro - marineland, 375

£52.99
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Seachem large aquarium - –,

Seachem large aquarium - –,

£87.09
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Fluval ac20 power filter - fluval,

Fluval ac20 power filter - fluval,

£41.99
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Cnz sun 704b 525 - cnz, gph

Cnz sun 704b 525 - cnz, gph

£119.99
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Marineland penguin pro - marineland, 275

Marineland penguin pro - marineland, 275

£36.00
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Uimoso 396gph external - uimoso,

Uimoso 396gph external - uimoso,

£72.99
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Sunsun 106gph stage - 106gph, external

Sunsun 106gph stage - 106gph, external

£43.99
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Sunsun 3000 5 stage - sunsun, hw-3000

Sunsun 3000 5 stage - sunsun, hw-3000

£140.99
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Tetra whisper bio bag - whisper, bio-bag

Tetra whisper bio bag - whisper, bio-bag

£10.32
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Cfs 700 aquarium canister - 700,

Cfs 700 aquarium canister - 700,

£159.95
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Whisper power filter - iq, quiet

Whisper power filter - iq, quiet

£31.28
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Fluval aquaclear ac110 power - aquaclear,

Fluval aquaclear ac110 power - aquaclear,

£40.00
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200 gallon aquarium fish - 200,

200 gallon aquarium fish - 200,

£119.99
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Pawfly canister filters for - canister,

Pawfly canister filters for - canister,

£49.92
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Aquarium waterfall filter pump - aquarium,

Aquarium waterfall filter pump - aquarium,

£9.89
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Uimoso external gallon - external, 75

Uimoso external gallon - external, 75

£67.89
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Tetra whisper bio bag - tetra,

Tetra whisper bio bag - tetra,

£19.99
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Pcs bio double sponge filter - 4,

Pcs bio double sponge filter - 4,

£14.98
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Stage external canister - 3,

Stage external canister - 3,

£105.99
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Aquarium waterfall filter pump - waterfall,

Aquarium waterfall filter pump - waterfall,

£9.89
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Large bio sponge filter - x-large,

Large bio sponge filter - x-large,

£29.99
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Corner bio sponge filter - corner,

Corner bio sponge filter - corner,

£10.99
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Aquarium filter with - filter, uv

Aquarium filter with - filter, uv

£29.81
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Aquarium external filter - external,

Aquarium external filter - external,

£48.60
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Tetra whisper bio - tetra, bio-bag

Tetra whisper bio - tetra, bio-bag

£9.80
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Seachem tidal 110 aquarium - tidal,

Seachem tidal 110 aquarium - tidal,

£69.99
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Aquarium hang filter - hang, on

Aquarium hang filter - hang, on

£11.11
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Aquarium canister filters - aquarium,

Aquarium canister filters - aquarium,

£92.95
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602b 603b inlet outlet - hw-602b/hw-603b,

602b 603b inlet outlet - hw-602b/hw-603b,

£5.99
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External hang back aquarium - hang-on-back,

External hang back aquarium - hang-on-back,

£41.39
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Uimoso 224 5gph external - uimoso,

Uimoso 224 5gph external - uimoso,

£62.99
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Sunsun 603b stage - sunsun, 3-stage

Sunsun 603b stage - sunsun, 3-stage

£48.99
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Vevor 396gph canister - canister, filter

Vevor 396gph canister - canister, filter

£95.90
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External canister aquarium - external,

External canister aquarium - external,

£93.40
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Sunsun stage external - sunsun, 3-stage

Sunsun stage external - sunsun, 3-stage

£43.99
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Quiet hang back aquarium - quiet,

Quiet hang back aquarium - quiet,

£39.98
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Used cfs 700 aquarium - cfs, canister

Used cfs 700 aquarium - cfs, canister

£138.95
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Electric power filter aquarium - power,

Electric power filter aquarium - power,

£10.99
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Stage external canister pump - 3-stage,

Stage external canister pump - 3-stage,

£49.99
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Sunsun 5000 stage - sunsun, 4

Sunsun 5000 stage - sunsun, 4

£145.99
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Elive aquaduo gallon - aquaduo, 10

Elive aquaduo gallon - aquaduo, 10

£26.99
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Aquarium fish tank - tank, mini

Aquarium fish tank - tank, mini

£9.99
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Aqueon high quality - aqueon, carbon

Aqueon high quality - aqueon, carbon

£14.95
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Brand new top fin silenstream - new,

Brand new top fin silenstream - new,

£19.99
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Seachem tidal aquarium - seachem,

Seachem tidal aquarium - seachem,

£62.14
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Fishkeeper canister filters - canister,

Fishkeeper canister filters - canister,

£107.93
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Refugium wsr mini fuge 100 - wsr-mini, fuge-100

Refugium wsr mini fuge 100 - wsr-mini, fuge-100

£119.99
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Aqua tech power aquarium - aqua-tech,

Aqua tech power aquarium - aqua-tech,

£32.21
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Aqueon quietflow led - quietflow,

Aqueon quietflow led - quietflow,

£38.99
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Aquarium canister filter - aquarium,

Aquarium canister filter - aquarium,

£129.99
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Eheim 4004320 prefilter for - 4004320,

Eheim 4004320 prefilter for - 4004320,

£18.64
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Penn plax cascade - penn,

Penn plax cascade - penn,

£69.99
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Hidom external aquarium filter - hidom,

Hidom external aquarium filter - hidom,

£88.65
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External aquarium filter with - aquarium,

External aquarium filter with - aquarium,

£98.38
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Canister filter external - canister,

Canister filter external - canister,

£110.49
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Quiet hang back aquarium - back,

Quiet hang back aquarium - back,

£48.61
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📊96 listings · from £5.99 · avg £58.71
⚠️ These listings were last updated more than 21 days ago. Search for fresh listings

Browse 96 external aquarium filters listings currently in our index. Prices range from £5.99 to £229.99, with an average of £58.71. 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 £5.99, while premium listings can reach £229.99 — giving you a wide budget spread to work with. The average price of £58.71 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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