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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
Vevor 264gph canister filter - 264gph,

Vevor 264gph canister filter - 264gph,

$53.99
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Ultra quiet external - ultra-quiet, filter

Ultra quiet external - ultra-quiet, filter

$85.49
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Ultra quiet external filter - ultra-quiet,

Ultra quiet external filter - ultra-quiet,

$85.49
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Allison transmission external - allison,

Allison transmission external - allison,

$96.07
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Uimoso external gallon - external, 75

Uimoso external gallon - external, 75

$67.89
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Aquarium waterfall filter pump - aquarium,

Aquarium waterfall filter pump - aquarium,

$9.80
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Vevor 528gph canister filter - 528gph,

Vevor 528gph canister filter - 528gph,

$99.90
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Fish tank filter aquarium - fish,

Fish tank filter aquarium - fish,

$39.98
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Vevor 528gph canister filter - 528gph,

Vevor 528gph canister filter - 528gph,

$99.90
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Uimoso 224 5gph - 224.5gph, 3-stage

Uimoso 224 5gph - 224.5gph, 3-stage

$51.99
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Aqueon quietflow led pro - quietflow, 20

Aqueon quietflow led pro - quietflow, 20

$24.99
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Aquarium waterfall filter pump - aquarium,

Aquarium waterfall filter pump - aquarium,

$9.89
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Uimoso 700 gph stage - uimoso,

Uimoso 700 gph stage - uimoso,

$98.99
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Rheem rxhf external filter - rxhf-21,

Rheem rxhf external filter - rxhf-21,

$150.00
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Pax bellum d - pax,

Pax bellum d - pax,

$150.00
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Under gravel aquarium filter - aquarium,

Under gravel aquarium filter - aquarium,

$32.97
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Marineland penguin 350b - penguin,

Marineland penguin 350b - penguin,

$59.99
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Vevor canister filter - vevor,

Vevor canister filter - vevor,

$82.71
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Blueyu external hang - blueyu,

Blueyu external hang - blueyu,

$37.45
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Vevor canister filter - 314, gph

Vevor canister filter - 314, gph

$85.90
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For aqueon filter cartridge - aqueon,

For aqueon filter cartridge - aqueon,

$19.98
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Aquarium waterfall filter - aquarium,

Aquarium waterfall filter - aquarium,

$9.98
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Vevor 264gph canister filter - 264gph,

Vevor 264gph canister filter - 264gph,

$48.07
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Uimoso external aquarium - uimoso,

Uimoso external aquarium - uimoso,

$86.99
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Vevor canister filter 700 - filter, gph

Vevor canister filter 700 - filter, gph

$111.90
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Vevor 224 5gph canister filter - vevor, 224.5gph

Vevor 224 5gph canister filter - vevor, 224.5gph

$59.90
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Vevor canister filter - canister,

Vevor canister filter - canister,

$91.90
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Aqueon high quality carbon - aqueon,

Aqueon high quality carbon - aqueon,

$14.95
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420gph aquarium filter - 420gph,

420gph aquarium filter - 420gph,

$59.02
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Sunwen 1000f canister - sunwen, sf-1000f-uv

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

$84.61
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Mutil stage aquarium - mutil,

Mutil stage aquarium - mutil,

$46.41
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420gph aquarium filter - 420gph,

420gph aquarium filter - 420gph,

$50.99
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Fish tank filter - fish,

Fish tank filter - fish,

$39.45
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Aquarium fish tank freshwater - aquarium,

Aquarium fish tank freshwater - aquarium,

$49.54
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Cfs 130 aquarium canister - 130,

Cfs 130 aquarium canister - 130,

$39.95
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Uimoso stage external - 4-stage,

Uimoso stage external - 4-stage,

$79.99
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Cnz sun 704b 525 gph - sun,

Cnz sun 704b 525 gph - sun,

$119.99
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Hydor prime external - hydor,

Hydor prime external - hydor,

$56.00
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Large aquarium fish - –,

Large aquarium fish - –,

$145.19
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External aquarium filter - aquarium,

External aquarium filter - aquarium,

$52.61
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Cfs 700 aquarium canister - 700,

Cfs 700 aquarium canister - 700,

$169.95
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Sunsun stage external - sunsun,

Sunsun stage external - sunsun,

$43.99
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Vevor canister filter 317 - vevor, gph

Vevor canister filter 317 - vevor, gph

$99.90
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Ultra quiet power filter for - ultra,

Ultra quiet power filter for - ultra,

$82.65
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Aquamaxx marine protein - aquamaxx,

Aquamaxx marine protein - aquamaxx,

$90.00
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Bio sponge filter - filter, breeding

Bio sponge filter - filter, breeding

$9.99
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Vevor 528gph canister - 528gph, filter

Vevor 528gph canister - 528gph, filter

$113.99
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Fluval power filter size - fluval, ac

Fluval power filter size - fluval, ac

$52.99
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Aquarium waterfall filter pump - filter,

Aquarium waterfall filter pump - filter,

$9.89
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Pax bellum arid - pax, n24

Pax bellum arid - pax, n24

$90.00
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External hang back canister - external,

External hang back canister - external,

$39.20
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Sunsun 106gph stage external - 3,

Sunsun 106gph stage external - 3,

$43.99
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Vevor canister filter 264 gph - canister,

Vevor canister filter 264 gph - canister,

$73.90
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External hang back - external, hang-on-back

External hang back - external, hang-on-back

$46.38
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Aquaclear 150 power filter - aquaclear,

Aquaclear 150 power filter - aquaclear,

$29.99
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Seachem large aquarium - seachem,

Seachem large aquarium - seachem,

$87.09
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Vevor 162 7gph canister - canister, filter

Vevor 162 7gph canister - canister, filter

$65.90
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Sunsun aquarium external - sunsun,

Sunsun aquarium external - sunsun,

$153.99
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Aquarium waterfall filter - aquarium, pump

Aquarium waterfall filter - aquarium, pump

$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 407 performance - fluval,

Fluval 407 performance - fluval,

$192.09
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Uimoso 528gph stage external - uimoso,

Uimoso 528gph stage external - uimoso,

$92.99
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Vevor canister filter 700 gph - filter,

Vevor canister filter 700 gph - filter,

$111.90
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Whisper power filter - whisper,

Whisper power filter - whisper,

$60.60
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Fluval aquaclear ac20 power - aquaclear,

Fluval aquaclear ac20 power - aquaclear,

$39.00
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External canister aquarium - canister,

External canister aquarium - canister,

$100.91
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Aquarium external ultra - external, ultra-quiet

Aquarium external ultra - external, ultra-quiet

$120.00
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Vevor gallon aquarium - 75,

Vevor gallon aquarium - 75,

$73.90
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Canister filter external - canister,

Canister filter external - canister,

$87.59
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Stage external canister - 3,

Stage external canister - 3,

$105.99
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Aquarium waterfall filter pump - filter,

Aquarium waterfall filter pump - filter,

$9.99
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Pondforse canister filter - pondforse,

Pondforse canister filter - pondforse,

$70.50
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Fluval 407 performance - fluval,

Fluval 407 performance - fluval,

$215.99
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Electric power filter aquarium - filter,

Electric power filter aquarium - filter,

$10.99
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Hydor professional 350 - hydor,

Hydor professional 350 - hydor,

$187.50
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Refugium wsr refuge9 hang - wsr-refuge9-g6,

Refugium wsr refuge9 hang - wsr-refuge9-g6,

$169.99
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Fluval uvc watt - fluval,

Fluval uvc watt - fluval,

$83.99
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Uimoso external aquarium - uimoso,

Uimoso external aquarium - uimoso,

$74.99
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External canister aquarium - external,

External canister aquarium - external,

$92.88
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Aqueon smartclean power filter - aqueon,

Aqueon smartclean power filter - aqueon,

$26.98
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Eheim classic 600 2217 - 600,

Eheim classic 600 2217 - 600,

$110.00
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Eheim ecco pro 300 - easy, 80

Eheim ecco pro 300 - easy, 80

$149.00
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Uimoso 264 gph stage - uimoso, 2-stage

Uimoso 264 gph stage - uimoso, 2-stage

$61.99
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Aquarium waterfall filter - waterfall,

Aquarium waterfall filter - waterfall,

$9.99
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Uimoso 528gph stage external - uimoso,

Uimoso 528gph stage external - uimoso,

$97.99
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Bio sponge filter - bio, pad

Bio sponge filter - bio, pad

$11.49
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Tetra whisper bio - bio-bag, filter

Tetra whisper bio - bio-bag, filter

$9.59
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Aquarium waterfall filter - aquarium,

Aquarium waterfall filter - aquarium,

$9.99
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Top fin silenstream - top, aquarium

Top fin silenstream - top, aquarium

$42.99
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Aquatop stage canister - aquatop, 5-stage

Aquatop stage canister - aquatop, 5-stage

$125.00
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207 performance canister - 207,

207 performance canister - 207,

$250.00
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New fluval 207 performance - fluval,

New fluval 207 performance - fluval,

$138.00
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Roll pinky filters for - roll,

Roll pinky filters for - roll,

$14.99
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Aquatop 400uv mkii - aquatop,

Aquatop 400uv mkii - aquatop,

$149.99
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Ultra quiet medium - ultra-quiet, canister

Ultra quiet medium - ultra-quiet, canister

$139.64
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Ultra quiet large canister - ultra-quiet,

Ultra quiet large canister - ultra-quiet,

$159.59
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📊96 listings · from $9.59 · avg $77.85

Browse 96 external filter listings currently in our index. Prices range from $9.59 to $250, with an average of $77.85. 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 $9.59, while premium listings can reach $250 — giving you a wide budget spread to work with. The average price of $77.85 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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