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External filter

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External filter for sale on largest auction and classifieds sites

Home / / External filter refurbished & used for sale | For Sale USA
Uimoso external gallon - uimoso,

Uimoso external gallon - uimoso,

$67.89
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Ultra quiet external - ultra-quiet,

Ultra quiet external - ultra-quiet,

$85.49
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Rheem rxhf external filter - rheem, rxhf-21

Rheem rxhf external filter - rheem, rxhf-21

$150.00
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External hang back canister - external,

External hang back canister - external,

$39.20
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Uimoso 700 gph stage - uimoso, 5-stage

Uimoso 700 gph stage - uimoso, 5-stage

$98.99
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Aquarium waterfall filter pump - aquarium,

Aquarium waterfall filter pump - aquarium,

$9.80
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Vevor canister filter 492 - canister,

Vevor canister filter 492 - canister,

$91.90
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Vevor 264gph canister filter - vevor,

Vevor 264gph canister filter - vevor,

$53.99
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Aquarium waterfall filter pump - filter,

Aquarium waterfall filter pump - filter,

$9.89
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Fish tank filter - fish, aquarium

Fish tank filter - fish, aquarium

$39.98
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Vevor 528gph canister - vevor,

Vevor 528gph canister - vevor,

$99.90
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Aqueon quietflow led - quietflow, pro

Aqueon quietflow led - quietflow, pro

$24.99
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Marineland penguin 350b - marineland,

Marineland penguin 350b - marineland,

$59.99
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Ultra quiet external filter - ultra-quiet,

Ultra quiet external filter - ultra-quiet,

$85.49
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Ultra quiet external filter - ultra-quiet,

Ultra quiet external filter - ultra-quiet,

$85.49
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Corvette external - 20-27,

Corvette external - 20-27,

$89.99
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Fish tank filter aquarium - tank,

Fish tank filter aquarium - tank,

$39.45
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Vevor 528gph canister filter - vevor,

Vevor 528gph canister filter - vevor,

$99.90
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Uimoso 224 5gph - uimoso, 3-stage

Uimoso 224 5gph - uimoso, 3-stage

$51.99
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Vevor 264gph canister - canister, filter

Vevor 264gph canister - canister, filter

$48.07
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Vevor canister filter - vevor, 700

Vevor canister filter - vevor, 700

$111.90
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Uimoso stage external - uimoso, 4-stage

Uimoso stage external - uimoso, 4-stage

$79.99
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Vevor 224 5gph canister filter - canister,

Vevor 224 5gph canister filter - canister,

$59.90
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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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Sunsun stage external - sunsun,

Sunsun stage external - sunsun,

$43.99
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Aqueon high quality carbon - aqueon,

Aqueon high quality carbon - aqueon,

$14.95
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Hydor prime external - hydor,

Hydor prime external - hydor,

$59.00
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Uimoso external aquarium - uimoso,

Uimoso external aquarium - uimoso,

$86.99
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Rheem rxhf external filter - rheem, rxhf-17

Rheem rxhf external filter - rheem, rxhf-17

$75.00
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Canister filter external - canister, filter,

Canister filter external - canister, filter,

$112.98
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Ultra quiet fish tank - ultra,

Ultra quiet fish tank - ultra,

$53.99
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Ultra quiet 317gph - 317gph, canister

Ultra quiet 317gph - 317gph, canister

$99.99
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Electric power filter aquarium - electric,

Electric power filter aquarium - electric,

$10.99
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External hang back - external, canister

External hang back - external, canister

$56.99
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Bio sponge filter - sponge, fry

Bio sponge filter - sponge, fry

$9.99
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Fluval uvc watt - fx, 6-watt

Fluval uvc watt - fx, 6-watt

$82.00
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Sunsun 106gph stage external - 106gph,

Sunsun 106gph stage external - 106gph,

$43.99
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Fluval fx6 external canister - fx6,

Fluval fx6 external canister - fx6,

$300.00
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Sunwen aquarium external - sunwen,

Sunwen aquarium external - sunwen,

$143.43
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Sunwen aquarium external - aquarium,

Sunwen aquarium external - aquarium,

$126.82
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Aquarium waterfall filter pump - aquarium,

Aquarium waterfall filter pump - aquarium,

$9.89
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Cfs 130 aquarium canister - aquarium,

Cfs 130 aquarium canister - aquarium,

$39.95
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Cfs 700 aquarium canister - cfs,

Cfs 700 aquarium canister - cfs,

$169.95
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Aquarium fish tank - fish,

Aquarium fish tank - fish,

$45.68
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Aquarium external canister - aquarium,

Aquarium external canister - aquarium,

$48.60
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Aquarium waterfall filter pump - filter,

Aquarium waterfall filter pump - filter,

$9.98
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Aqueon smartclean power filter - aqueon,

Aqueon smartclean power filter - aqueon,

$26.98
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Aquaclear marineland powerhead - aquaclear,

Aquaclear marineland powerhead - aquaclear,

$100.00
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External aquarium filter - external,

External aquarium filter - external,

$48.60
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Sunsun aquarium external - sunsun,

Sunsun aquarium external - sunsun,

$153.99
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Whisper power filter silent - power,

Whisper power filter silent - power,

$58.54
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Pondforse canister filter - pondforse,

Pondforse canister filter - pondforse,

$50.00
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Seachem tidal external - 55,

Seachem tidal external - 55,

$34.94
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External canister aquarium - canister,

External canister aquarium - canister,

$100.91
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Fluval ac70 aquarium power - fluval,

Fluval ac70 aquarium power - fluval,

$52.99
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Fluval power filter - fluval,

Fluval power filter - fluval,

$52.99
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Canister filter external - canister, filter,

Canister filter external - canister, filter,

$99.98
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Eheim professionel external - eheim,

Eheim professionel external - eheim,

$70.00
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Vevor gallon aquarium - 75,

Vevor gallon aquarium - 75,

$73.90
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Fluval 307 external canister - 307,

Fluval 307 external canister - 307,

$181.00
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Cnz sun 704b 525 - 525, gph

Cnz sun 704b 525 - 525, gph

$119.99
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Uimoso 264 gph stage - uimoso, 2-stage

Uimoso 264 gph stage - uimoso, 2-stage

$61.99
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Ultra quiet external canister - ultra-quiet,

Ultra quiet external canister - ultra-quiet,

$132.99
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Aquael multikani 800 modular - aquael,

Aquael multikani 800 modular - aquael,

$49.99
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Fluval 407 performance - 407,

Fluval 407 performance - 407,

$215.99
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Pcs bio double sponge filter - 4,

Pcs bio double sponge filter - 4,

$14.98
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Seachem large aquarium - large,

Seachem large aquarium - large,

$87.09
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Uimoso 528gph stage - uimoso, external

Uimoso 528gph stage - uimoso, external

$97.99
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Aquatop 400uv mkii canister - cf-400uv,

Aquatop 400uv mkii canister - cf-400uv,

$149.99
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Vevor canister filter 317 gph - canister,

Vevor canister filter 317 gph - canister,

$99.90
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Canister filter external - canister,

Canister filter external - canister,

$87.51
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External hang back - external, aquarium

External hang back - external, aquarium

$43.13
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Aquael ultramax 1000 external - ultramax,

Aquael ultramax 1000 external - ultramax,

$215.99
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Tetra whisper power - power, filter

Tetra whisper power - power, filter

$25.00
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Aquarium fish tank - aquarium, mini

Aquarium fish tank - aquarium, mini

$9.99
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Vevor 224 5gph canister filter - vevor,

Vevor 224 5gph canister filter - vevor,

$59.90
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Fluval uvc watt - fx,

Fluval uvc watt - fx,

$83.99
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Sunsun 3000 5 stage - 9w, 5-stage

Sunsun 3000 5 stage - 9w, 5-stage

$82.95
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Marineland penguin pro 175 - penguin,

Marineland penguin pro 175 - penguin,

$21.72
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Stage external canister - 3-stage,

Stage external canister - 3-stage,

$56.99
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Top fin silenstream large - fin, pf-l

Top fin silenstream large - fin, pf-l

$18.99
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New fluval 407 - new,

New fluval 407 - new,

$235.00
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Roll pinky filters for - filters,

Roll pinky filters for - filters,

$14.99
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Fluval fx4 aquarium - fx4,

Fluval fx4 aquarium - fx4,

$284.99
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Aqueon quietflow led - quietflow,

Aqueon quietflow led - quietflow,

$20.00
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Top fin silenstream aquarium - top,

Top fin silenstream aquarium - top,

$42.99
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For aqueon filter cartridge - for,

For aqueon filter cartridge - for,

$19.98
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Aquarium waterfall filter pump - waterfall,

Aquarium waterfall filter pump - waterfall,

$9.99
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Aquarium hang filter pump - hang, on

Aquarium hang filter pump - hang, on

$9.68
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External canister aquarium - external,

External canister aquarium - external,

$92.97
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Refugium wsr refuge9 hang - wsr-refuge9-g6,

Refugium wsr refuge9 hang - wsr-refuge9-g6,

$169.99
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Aquarium external canister - external,

Aquarium external canister - external,

$79.99
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Marineland magnum hang - marineland,

Marineland magnum hang - marineland,

$269.99
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Uimoso external aquarium - external,

Uimoso external aquarium - external,

$74.99
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396gph stage canister - 3-stage,

396gph stage canister - 3-stage,

$173.79
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External hang back - external, hang-on-back

External hang back - external, hang-on-back

$68.98
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📊96 listings · from $9.68 · avg $80

Browse 96 external filter listings currently in our index. Prices range from $9.68 to $300, with an average of $80. 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 $300 — giving you a wide budget spread to work with. The average price of $80 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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