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External filter

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Home / / External filter refurbished & used for sale | For Sale USA
Fish tank filter aquarium - fish,

Fish tank filter aquarium - fish,

$37.88
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Rheem rxhf external filter - rxhf-17,

Rheem rxhf external filter - rxhf-17,

$75.00
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Rheem rxhf external filter - external,

Rheem rxhf external filter - external,

$150.00
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Fluidized media reactor - fluidized,

Fluidized media reactor - fluidized,

$39.00
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Vevor 396gph canister filter - vevor,

Vevor 396gph canister filter - vevor,

$68.79
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Vevor 264gph canister filter - vevor,

Vevor 264gph canister filter - vevor,

$53.99
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Aquarium waterfall filter - waterfall, pump

Aquarium waterfall filter - waterfall, pump

$9.80
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Vevor 528gph canister filter - vevor,

Vevor 528gph canister filter - vevor,

$85.90
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Marineland penguin 350b - marineland,

Marineland penguin 350b - marineland,

$59.99
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Aquarium waterfall filter pump - waterfall,

Aquarium waterfall filter pump - waterfall,

$9.89
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Vevor 528gph canister filter - 528gph,

Vevor 528gph canister filter - 528gph,

$89.99
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Fish tank filter aquarium - filter,

Fish tank filter aquarium - filter,

$37.48
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External aquarium filter - filter, w/

External aquarium filter - filter, w/

$46.17
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Ultra quiet 317gph - 317gph, canister

Ultra quiet 317gph - 317gph, canister

$99.99
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Penn plax cascade ccf3ul - cascade,

Penn plax cascade ccf3ul - cascade,

$159.99
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Hang back aquarium - hang, on

Hang back aquarium - hang, on

$58.99
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Vevor 396gph canister - 396gph, filter

Vevor 396gph canister - 396gph, filter

$66.92
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Fluval power filter size - power,

Fluval power filter size - power,

$51.99
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Aquarium waterfall filter pump - filter,

Aquarium waterfall filter pump - filter,

$9.98
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Aquarium waterfall filter pump - waterfall,

Aquarium waterfall filter pump - waterfall,

$9.89
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Vevor 224 5gph - vevor, filter

Vevor 224 5gph - vevor, filter

$65.90
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External hang back aquarium - external, hang-on-back

External hang back aquarium - external, hang-on-back

$40.16
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Vevor 224 5gph canister filter - 224.5gph,

Vevor 224 5gph canister filter - 224.5gph,

$59.90
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Uimoso 224 5gph - 224.5gph, 3-stage

Uimoso 224 5gph - 224.5gph, 3-stage

$51.99
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External hang back aquarium - external, hang-on-back

External hang back aquarium - external, hang-on-back

$43.13
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Aqueon quietflow led pro - aqueon,

Aqueon quietflow led pro - aqueon,

$24.99
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Bio sponge filter breeding - breeding, fry

Bio sponge filter breeding - breeding, fry

$9.99
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External canister aquarium - canister,

External canister aquarium - canister,

$99.99
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Zoo med nano - med,

Zoo med nano - med,

$49.00
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External hang back canister - hang-on-back,

External hang back canister - hang-on-back,

$39.20
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Penn plax cascade 1500 - cascade,

Penn plax cascade 1500 - cascade,

$230.00
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Used eheim classic - used,

Used eheim classic - used,

$189.99
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Uimoso external gallon - uimoso,

Uimoso external gallon - uimoso,

$60.99
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Aqueon high quality - quality, carbon

Aqueon high quality - quality, carbon

$14.95
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Cfs 700 aquarium canister - aquarium,

Cfs 700 aquarium canister - aquarium,

$169.95
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Fluval aquaclear ac70 - ac70, power

Fluval aquaclear ac70 - ac70, power

$50.00
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Sunsun aquarium external - aquarium,

Sunsun aquarium external - aquarium,

$153.99
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Aquarium fish tank mini - aquarium,

Aquarium fish tank mini - aquarium,

$9.99
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Sicce whale 120 - sicce,

Sicce whale 120 - sicce,

$104.95
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Aquarium external ultra quiet - aquarium,

Aquarium external ultra quiet - aquarium,

$120.00
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Uimoso 396gph stage - uimoso,

Uimoso 396gph stage - uimoso,

$66.97
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External hang back canister - hang-on-back,

External hang back canister - hang-on-back,

$33.99
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Cfs 130 aquarium - 130, canister

Cfs 130 aquarium - 130, canister

$39.95
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Sunsun stage external - sunsun, 3-stage

Sunsun stage external - sunsun, 3-stage

$43.99
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Uimoso 528gph stage - 528gph, 5-stage

Uimoso 528gph stage - 528gph, 5-stage

$82.99
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Fluval 306 external canister - fluval,

Fluval 306 external canister - fluval,

$149.95
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Brand new top fin silenstream - top,

Brand new top fin silenstream - top,

$19.99
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Hydor prime external - hydor,

Hydor prime external - hydor,

$56.00
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Cnz sun 704b 525 - sun, gph

Cnz sun 704b 525 - sun, gph

$119.99
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Fluval uvc line - fluval,

Fluval uvc line - fluval,

$76.99
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Vevor 224 5gph - vevor, canister

Vevor 224 5gph - vevor, canister

$59.90
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Fluval fx2 aquarium canister - fluval,

Fluval fx2 aquarium canister - fluval,

$120.00
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Aquarium waterfall filter pump - waterfall,

Aquarium waterfall filter pump - waterfall,

$9.99
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Fluval 207 perfomance canister - perfomance,

Fluval 207 perfomance canister - perfomance,

$64.99
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Uimoso external aquarium - uimoso,

Uimoso external aquarium - uimoso,

$74.99
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602b stage external - 3-stage,

602b stage external - 3-stage,

$12.99
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New seachem tidal hob power - new,

New seachem tidal hob power - new,

$52.99
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Sunsun 106gph stage external - stage,

Sunsun 106gph stage external - stage,

$43.99
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Vevor canister filter - filter, 700

Vevor canister filter - filter, 700

$111.90
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Aquarium external canister - external,

Aquarium external canister - external,

$48.60
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Pondforse canister filter - pondforse,

Pondforse canister filter - pondforse,

$50.00
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Oase biomaster 350 canister - oase, 2

Oase biomaster 350 canister - oase, 2

$249.99
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302 stage external - 3-stage,

302 stage external - 3-stage,

$108.24
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Aquarium hang filter pump - on,

Aquarium hang filter pump - on,

$9.68
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Aqueon pro quiet flow - flow, 75

Aqueon pro quiet flow - flow, 75

$57.99
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Tetra whisper power filter - whisper,

Tetra whisper power filter - whisper,

$25.00
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Fluval ac30 power filter - fluval,

Fluval ac30 power filter - fluval,

$39.99
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Fluval 107 performance - fluval,

Fluval 107 performance - fluval,

$35.00
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Sicce whale 500 - sicce,

Sicce whale 500 - sicce,

$79.99
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Eheim ecco pro - ecco,

Eheim ecco pro - ecco,

$149.00
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Fluval 207 performance - fluval,

Fluval 207 performance - fluval,

$139.99
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Uimoso 264 gph stage - uimoso,

Uimoso 264 gph stage - uimoso,

$63.99
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Fish tank water - water, filter

Fish tank water - water, filter

$60.60
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Aqueon quietflow led pro - aqueon,

Aqueon quietflow led pro - aqueon,

$79.99
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Seachem large aquarium - –,

Seachem large aquarium - –,

$87.09
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Uimoso 264gph stage - 2-stage, external

Uimoso 264gph stage - 2-stage, external

$54.99
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Amosijoy small canister filter - amosijoy,

Amosijoy small canister filter - amosijoy,

$67.89
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Aquarium external filter - aquarium,

Aquarium external filter - aquarium,

$48.60
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Uimoso stage external - uimoso,

Uimoso stage external - uimoso,

$79.99
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Pcs bio double - 4, filter

Pcs bio double - 4, filter

$14.98
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Vevor canister filter - canister,

Vevor canister filter - canister,

$74.99
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Aquarium fish tank freshwater - aquarium,

Aquarium fish tank freshwater - aquarium,

$46.17
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Vevor canister filter - canister, 492

Vevor canister filter - canister, 492

$79.99
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Uimoso 700 gph - uimoso,

Uimoso 700 gph - uimoso,

$98.99
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Roll pinky filters for - pinky,

Roll pinky filters for - pinky,

$14.99
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Vevor canister filter 264 gph - vevor,

Vevor canister filter 264 gph - vevor,

$63.99
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Api rena filstar small - rena,

Api rena filstar small - rena,

$79.95
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Sunwen 1000f canister - sf-1000f-uv,

Sunwen 1000f canister - sf-1000f-uv,

$84.61
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Cascade pro series - cascade, aquarium

Cascade pro series - cascade, aquarium

$145.99
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Marineland penguin bio wheel - penguin, bio-wheel

Marineland penguin bio wheel - penguin, bio-wheel

$82.90
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Fluval ac70 aquarium power - fluval,

Fluval ac70 aquarium power - fluval,

$52.99
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Uimoso external aquarium - uimoso,

Uimoso external aquarium - uimoso,

$89.99
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Sunsun 302 external - sunsun,

Sunsun 302 external - sunsun,

$40.00
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Aquarium waterfall filter pump - aquarium,

Aquarium waterfall filter pump - aquarium,

$9.99
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Ppe double deep spin - double,

Ppe double deep spin - double,

$50.00
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Pcs fit amosijoy - pcs,

Pcs fit amosijoy - pcs,

$32.99
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📊96 listings · from $9.68 · avg $69.31

Browse 96 external filter listings currently in our index. Prices range from $9.68 to $249.99, with an average of $69.31. 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 →

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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 $9.68, while premium listings can reach $249.99 — giving you a wide budget spread to work with. The average price of $69.31 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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