External aquarium filters
External aquarium filters for sale on Ireland's largest auction and classifieds sites
Aquarium fish tank - aquarium, external - £34.99
Maintaining filter very • Simple drip free • Shut off tap - Free postage - New and Used
Maintaining filter very • Simple drip free • Shut off tap - Free postage - New and Used
Aquarium fish tank external - aquarium, - £84.99
Allpondsolutions aquarium external • Filter range optional • Steriliser built sterilizer - Free postage - New and Used
Allpondsolutions aquarium external • Filter range optional • Steriliser built sterilizer - Free postage - New and Used
Aquarium fish tank - aquarium, - £94.99
Litres per hour • Flow rate aquariums • Filters are available - Free postage - New and Used
Litres per hour • Flow rate aquariums • Filters are available - Free postage - New and Used
External aquarium canister - external, - £59.99
Jebao one touch • External canister filters • Outlet tube fitted - Free postage - New and Used
Jebao one touch • External canister filters • Outlet tube fitted - Free postage - New and Used
Looking for more external aquarium filters?
Search eBay live — fresh results filtered for the best value, updated every hour.
Hidom external aquarium - hidom, - £59.95
Maintaining filter very • Simple drip free • Shut off tap - Free postage - New and Used
Maintaining filter very • Simple drip free • Shut off tap - Free postage - New and Used
📊
48 listings · from £6.99 · avg £66.23
⚠️ These listings were last updated more than 23 days ago.
Search for fresh listings
Browse 48 external aquarium filters listings currently in our index. Prices range from £6.99 to £365, with an average of £66.23. 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 →
Allpondsolutions 250 - allpondsolutions, ef-250 - £42.99
Maintaining filter very • Simple drip free • Shut off tap - Free postage - New and Used
Maintaining filter very • Simple drip free • Shut off tap - Free postage - New and Used
External aquarium canister - external, - £39.99
External canister aquarium • Filter components shown • Photos freshwater aquariums - Free postage - New and Used
External canister aquarium • Filter components shown • Photos freshwater aquariums - Free postage - New and Used
Aquarium fish tank external - £64.99
Maintaining filter very • Simple drip free • Shut off tap - Free postage - New and Used
Maintaining filter very • Simple drip free • Shut off tap - Free postage - New and Used
Aquarium fish tank external - tank, - £59.99
Fish feel more • Comfortable plants grow • Better making your - Free postage - New and Used
Fish feel more • Comfortable plants grow • Better making your - Free postage - New and Used
Aquarium external canister - aquarium, - £62.95
External canister filter • Filters why choose • Hidom series type - Free postage - New and Used
External canister filter • Filters why choose • Hidom series type - Free postage - New and Used
Filter floss wool - floss, foam - £43.49
Aquarium pond filter • Wool works basis • Electrostatic attraction debris - Free postage - New and Used
Aquarium pond filter • Wool works basis • Electrostatic attraction debris - Free postage - New and Used
Aquarium fish tank external - aquarium, - £40.99
This aquarium external • Filter has two • Hang brackets which - Free postage - New and Used
This aquarium external • Filter has two • Hang brackets which - Free postage - New and Used
Filter floss wool - filter, roll - £18.99
Marine reef fish • Filter wool hobby • Natural hermit crab - Free postage - New and Used
Marine reef fish • Filter wool hobby • Natural hermit crab - Free postage - New and Used
Aquarium fish tank - , external - £99.99
Model 2000ef all • Pond solutions external • Filter built sterilizer - Free postage - New and Used
Model 2000ef all • Pond solutions external • Filter built sterilizer - Free postage - New and Used
Aquarium fish tank external - fish, - £84.99
Built sterilizer exposes • Passing water lethal • Doses ultraviolet light - Free postage - New and Used
Built sterilizer exposes • Passing water lethal • Doses ultraviolet light - Free postage - New and Used
Sunsun 3000l external - 3000l/h, - £179.99
Newest canister from • Sunsun that easy • Simple use 3000 - Free postage - New and Used
Newest canister from • Sunsun that easy • Simple use 3000 - Free postage - New and Used
Allpondsolutions 500l hang - allpondsolutions, 500l/h - £29.99
All pond solutions • Hob 500 aquarium • Hang external filter - Free postage - New and Used
All pond solutions • Hob 500 aquarium • Hang external filter - Free postage - New and Used
69cm wide aquarium - 69cm, filter - £11.19
Filter wool works • Basis electrostatic attraction • Debris from your - Free postage - New and Used
Filter wool works • Basis electrostatic attraction • Debris from your - Free postage - New and Used
Aquarium fish tank canister - aquarium, - £54.99
Aquarium external filter • Fef 230 800l • Tanks 200l maintaining - Free postage - New and Used
Aquarium external filter • Fef 230 800l • Tanks 200l maintaining - Free postage - New and Used
Aquarium pond filter wool - pond, - £41.99
Pmf koi aquatics • Filter wool works • Basis electrostatic attraction - Free postage - New and Used
Pmf koi aquatics • Filter wool works • Basis electrostatic attraction - Free postage - New and Used
External aquarium fish - aquarium, - £19.99
Filter booster can • Also used standalone • Addition suitable pump - Free postage - New and Used
Filter booster can • Also used standalone • Addition suitable pump - Free postage - New and Used
Jebao external aquarium fish - jebao, - £59.99
External aquarium filter • Main feature jebao • Has shut valves - Free postage - New and Used
External aquarium filter • Main feature jebao • Has shut valves - Free postage - New and Used
Aquarium external canister - aquarium, - £23.26
Housing filters hung • External wall your • Aquarium they are - Free postage - New and Used
Housing filters hung • External wall your • Aquarium they are - Free postage - New and Used
External canister filter - external, - £24.99
These filter canisters • Not have pump • They are connected - Free postage - New and Used
These filter canisters • Not have pump • They are connected - Free postage - New and Used
Hang external filter - hang, on - £16.99
All pond solutions • Aquarium hang external • Are suitable fresh - Free postage - New and Used
All pond solutions • Aquarium hang external • Are suitable fresh - Free postage - New and Used
Aquarium fish tank external - aquarium, - £99.99
Ef1 model ef2 • Maintaining filter very • Simple drip free - Free postage - New and Used
Ef1 model ef2 • Maintaining filter very • Simple drip free - Free postage - New and Used
Aqua one ocellaris - one, - £42.99
Suits aquariums between • They have sizes • Available suit your - Free postage - New and Used
Suits aquariums between • They have sizes • Available suit your - Free postage - New and Used
Activated carbon 4mm granular - activated, - £49.95
- Free postage - New and Used
- Free postage - New and Used
Jebao external aquarium filter - external, - £69.95
Jebao one touch • 400 series external • Canister design frees - Free postage - New and Used
Jebao one touch • 400 series external • Canister design frees - Free postage - New and Used
Aquarium fish tank external - aquarium, - £109.99
Integrated steriliser now • Has more easily • Accessible switch improved - Free postage - New and Used
Integrated steriliser now • Has more easily • Accessible switch improved - Free postage - New and Used
Oase filtosmart thermo - oase, - £105.99
Oase filtosmart thermo • External filter • 100w heater - Free postage - New and Used
Oase filtosmart thermo • External filter • 100w heater - Free postage - New and Used
Aquarium fish tank - , external - £74.98
Supplied steriliser all • Pond solutions 1000ef • External filter now - Free postage - New and Used
Supplied steriliser all • Pond solutions 1000ef • External filter now - Free postage - New and Used
Small aquarium filter hang - aquarium, - £10.95
Filter includes inlet • Protection foam prevent • Shrimp fry from - Free postage - New and Used
Filter includes inlet • Protection foam prevent • Shrimp fry from - Free postage - New and Used
Aquarium tank external filter - aquarium, - £8.99
White foams fits • 1000ef ef1 system • Ef2 systems 2000ef - Free postage - New and Used
White foams fits • 1000ef ef1 system • Ef2 systems 2000ef - Free postage - New and Used
Seachem tidal external - seachem, - £49.99
Seachem tidal new • Open box test • These filters are - Free postage - New and Used
Seachem tidal new • Open box test • These filters are - Free postage - New and Used
Fluval external filter 107 - external, - £305.99
Fluval external canister • Filters are engineered • Optimal balance performance - Free postage - New and Used
Fluval external canister • Filters are engineered • Optimal balance performance - Free postage - New and Used
Foam inlet strainer pre filter - foam, - £6.99
Coarse 25ppi foams • Are ideal general • Tanks very fish - Free postage - New and Used
Coarse 25ppi foams • Are ideal general • Tanks very fish - Free postage - New and Used
Fluval external filter media - external, - £51.45
Fluval external filter • 105 106 107 • 205 206 207 - Free postage - New and Used
Fluval external filter • 105 106 107 • 205 206 207 - Free postage - New and Used
External aquarium canister - aquarium, - £74.99
Suitable aquariums 250l • Keep your aquarium • Crystal clear this - Free postage - New and Used
Suitable aquariums 250l • Keep your aquarium • Crystal clear this - Free postage - New and Used
External aquarium canister - external, - £14.99
- Free postage - New and Used
- Free postage - New and Used
Eheim ecco pro 130 - ecco, - £11.20
Hoses pipes accessories • Are also included • New eheim ecco - Free postage - New and Used
Hoses pipes accessories • Are also included • New eheim ecco - Free postage - New and Used
External aquarium canister - external, - £52.70
Jebao 402 opened • Tested but too • Powerful tank selling - Free postage - New and Used
Jebao 402 opened • Tested but too • Powerful tank selling - Free postage - New and Used
Swell aquarium external - external, filter - £45.99
Swell mini titan • External filter high • Performance filtration system - Free postage - New and Used
Swell mini titan • External filter high • Performance filtration system - Free postage - New and Used
Superfish hang filter 50 - superfish, - £18.90
Hang filter 100 • 200 are external • Filters cold water - Free postage - New and Used
Hang filter 100 • 200 are external • Filters cold water - Free postage - New and Used
400l canister pump - 400l/h, - £34.98
Suitable freshwater marine • Aquarium tanks set • Fish tank external - Free postage - New and Used
Suitable freshwater marine • Aquarium tanks set • Fish tank external - Free postage - New and Used
Activated carbon 4mm granular - activated, - £365.00
These coal based • Carbon pellets are • Especially use water - Free postage - New and Used
These coal based • Carbon pellets are • Especially use water - Free postage - New and Used
Sunsun 3000l external - sunsun, 3000l/h - £159.69
Unique design inlet • Outlet accessories fix • Tank more effective - Free postage - New and Used
Unique design inlet • Outlet accessories fix • Tank more effective - Free postage - New and Used
Jebao external aquarium - jebao, - £54.95
Jebao one touch • External canister filters • Fluval line aquarium - Free postage - New and Used
Jebao one touch • External canister filters • Fluval line aquarium - Free postage - New and Used
Try this: aquarium rocks | aquarium stands | aquarium backgrounds | fish tank heaters | large fish tanks | aquarium cabinets | fish tank decorations | fluval aquariums | glass tanks | lava rock
Shop by budget
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 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 £6.99, while premium listings can reach £365 — giving you a wide budget spread to work with. The average price of £66.23 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.