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External filter

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Fish tank filter - tank, aquarium

Fish tank filter - tank, aquarium

$37.88
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Rheem rxhf external - rxhf-17, filter

Rheem rxhf external - rxhf-17, filter

$75.00
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Rheem rxhf external filter - rxhf-21,

Rheem rxhf external filter - rxhf-21,

$150.00
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Fluidized media reactor - media,

Fluidized media reactor - media,

$39.00
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Vevor 396gph canister filter - 396gph,

Vevor 396gph canister filter - 396gph,

$68.79
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Vevor 264gph canister - vevor, filter

Vevor 264gph canister - vevor, filter

$53.99
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Aquarium waterfall filter pump - waterfall,

Aquarium waterfall filter pump - waterfall,

$9.80
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Vevor 528gph canister filter - 528gph,

Vevor 528gph canister filter - 528gph,

$85.90
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Marineland penguin 350b - marineland,

Marineland penguin 350b - marineland,

$59.99
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Aquarium waterfall filter - waterfall,

Aquarium waterfall filter - 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 - tank, aquarium

Fish tank filter - tank, aquarium

$37.48
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External aquarium filter - external,

External aquarium filter - external,

$46.17
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Ultra quiet 317gph canister - ultra-quiet,

Ultra quiet 317gph canister - ultra-quiet,

$99.99
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Penn plax cascade ccf3ul - penn-plax,

Penn plax cascade ccf3ul - penn-plax,

$159.99
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Hang back aquarium - hang,

Hang back aquarium - hang,

$58.99
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Vevor 396gph canister - canister, filter

Vevor 396gph canister - canister, filter

$66.92
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Fluval power filter - fluval, ac

Fluval power filter - fluval, ac

$51.99
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Aquarium waterfall filter pump - waterfall,

Aquarium waterfall filter pump - waterfall,

$9.98
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Aquarium waterfall filter pump - filter,

Aquarium waterfall filter pump - filter,

$9.89
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Vevor 224 5gph canister - 224.5gph, filter

Vevor 224 5gph canister - 224.5gph, 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 - vevor, 224.5gph

Vevor 224 5gph canister - vevor, 224.5gph

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

Uimoso 224 5gph - uimoso, 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 - quietflow, 20

Aqueon quietflow led pro - quietflow, 20

$24.99
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Bio sponge filter breeding - filter,

Bio sponge filter breeding - filter,

$9.99
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External canister aquarium - external,

External canister aquarium - external,

$99.99
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Zoo med nano external - nano,

Zoo med nano external - nano,

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

External hang back - hang-on-back, canister

$39.20
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Penn plax cascade - penn-plax, 1500

Penn plax cascade - penn-plax, 1500

$230.00
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Used eheim classic - classic, 600

Used eheim classic - classic, 600

$189.99
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Uimoso external gallon - uimoso, 75

Uimoso external gallon - uimoso, 75

$60.99
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Aqueon high quality carbon - aqueon,

Aqueon high quality carbon - aqueon,

$14.95
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Cfs 700 aquarium - 700, canister

Cfs 700 aquarium - 700, canister

$169.95
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Fluval aquaclear ac70 power - fluval,

Fluval aquaclear ac70 power - fluval,

$50.00
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Sunsun aquarium external - sunsun,

Sunsun aquarium external - sunsun,

$153.99
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Aquarium fish tank - tank, mini

Aquarium fish tank - tank, mini

$9.99
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Sicce whale 120 - 120, external

Sicce whale 120 - 120, external

$104.95
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Aquarium external ultra quiet - aquarium, ultra-quiet

Aquarium external ultra quiet - aquarium, ultra-quiet

$120.00
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Uimoso 396gph stage external - 396gph,

Uimoso 396gph stage external - 396gph,

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

External hang back - hang-on-back, canister

$33.99
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Cfs 130 aquarium canister - cfs,

Cfs 130 aquarium canister - cfs,

$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 external - 5-stage,

Uimoso 528gph stage external - 5-stage,

$82.99
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Fluval 306 external - 306, canister

Fluval 306 external - 306, canister

$149.95
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Brand new top fin - new,

Brand new top fin - new,

$19.99
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Hydor prime external - prime, |

Hydor prime external - prime, |

$56.00
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Cnz sun 704b - cnz, 525

Cnz sun 704b - cnz, 525

$119.99
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Fluval uvc line water - fluval,

Fluval uvc line water - fluval,

$76.99
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Vevor 224 5gph canister filter - vevor,

Vevor 224 5gph canister filter - vevor,

$59.90
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Fluval fx2 aquarium - fluval, canister

Fluval fx2 aquarium - fluval, canister

$120.00
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Aquarium waterfall filter pump - aquarium,

Aquarium waterfall filter pump - aquarium,

$9.99
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Fluval 207 perfomance - perfomance, canister

Fluval 207 perfomance - perfomance, canister

$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 - 55,

New seachem tidal hob power - 55,

$52.99
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Sunsun 106gph stage - 3, external

Sunsun 106gph stage - 3, external

$43.99
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Vevor canister filter - vevor, 700

Vevor canister filter - vevor, 700

$111.90
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Aquarium external canister - aquarium,

Aquarium external canister - aquarium,

$48.60
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Pondforse canister filter - pondforse,

Pondforse canister filter - pondforse,

$50.00
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Oase biomaster 350 - 2,

Oase biomaster 350 - 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 - aqueon, flow

Aqueon pro quiet - aqueon, flow

$57.99
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Tetra whisper power filter - iq,

Tetra whisper power filter - iq,

$25.00
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Fluval ac30 power - power, 10-30

Fluval ac30 power - power, 10-30

$39.99
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Fluval 107 performance - fluval,

Fluval 107 performance - fluval,

$35.00
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Sicce whale 500 - 500, external

Sicce whale 500 - 500, external

$79.99
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Eheim ecco pro 300 easy - ecco,

Eheim ecco pro 300 easy - 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 - 264,

Uimoso 264 gph stage - 264,

$63.99
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Fish tank water - fish, pump

Fish tank water - fish, pump

$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 - 264gph, external

Uimoso 264gph stage - 264gph, 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 - 4-stage,

Uimoso stage external - 4-stage,

$79.99
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Pcs bio double - pcs, filter

Pcs bio double - pcs, filter

$14.98
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Vevor canister filter - filter, gph

Vevor canister filter - filter, gph

$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 492 gph - vevor,

Vevor canister filter 492 gph - vevor,

$79.99
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Uimoso 700 gph stage - gph, 5-stage

Uimoso 700 gph stage - gph, 5-stage

$98.99
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Roll pinky filters - 10',

Roll pinky filters - 10',

$14.99
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Vevor canister filter 264 - canister,

Vevor canister filter 264 - canister,

$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 aquarium - cascade,

Cascade pro series aquarium - cascade,

$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 - ac70, power

Fluval ac70 aquarium - ac70, power

$52.99
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Uimoso external aquarium - uimoso,

Uimoso external aquarium - uimoso,

$89.99
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Sunsun 302 external - sunsun, hw-302

Sunsun 302 external - sunsun, hw-302

$40.00
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Aquarium waterfall filter pump - waterfall,

Aquarium waterfall filter pump - waterfall,

$9.99
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Ppe double deep spin - ppe,

Ppe double deep spin - ppe,

$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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