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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
Fish tank filter aquarium - fish,

Fish tank filter aquarium - fish,

$39.98
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Eheim professionel 2075 - professionel,

Eheim professionel 2075 - professionel,

$125.00
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External hang back - external, hang-on-back

External hang back - external, hang-on-back

$39.20
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Hang back aquarium canister - on,

Hang back aquarium canister - on,

$35.41
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Uimoso external gallon - uimoso,

Uimoso external gallon - uimoso,

$67.89
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Aquarium waterfall filter pump - aquarium,

Aquarium waterfall filter pump - aquarium,

$9.89
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Vevor 528gph canister - 528gph, filter

Vevor 528gph canister - 528gph, filter

$99.90
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Aquarium waterfall filter pump - aquarium,

Aquarium waterfall filter pump - aquarium,

$9.80
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Vevor 264gph canister - canister, filter

Vevor 264gph canister - canister, filter

$53.99
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Marineland penguin 350b - marineland,

Marineland penguin 350b - marineland,

$59.99
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Vevor 528gph canister filter - vevor,

Vevor 528gph canister filter - vevor,

$99.90
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Aqueon quietflow led pro - aqueon,

Aqueon quietflow led pro - aqueon,

$24.99
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Ultra quiet external filter - external,

Ultra quiet external filter - external,

$85.49
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Rheem rxhf external filter - external,

Rheem rxhf external filter - external,

$150.00
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Corvette external - 20-27,

Corvette external - 20-27,

$89.99
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Marineland penguin pro 175 - marineland,

Marineland penguin pro 175 - marineland,

$21.72
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Canister filter external - filter,

Canister filter external - filter,

$87.59
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Fish tank filter aquarium - fish,

Fish tank filter aquarium - fish,

$37.48
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External hang back - hang-on-back, aquarium

External hang back - hang-on-back, aquarium

$40.16
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Vevor 224 5gph - canister, filter

Vevor 224 5gph - canister, filter

$59.90
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Aquarium waterfall filter - aquarium,

Aquarium waterfall filter - aquarium,

$9.89
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Hydor prime external - prime, |

Hydor prime external - prime, |

$68.00
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Aqueon smartclean power filter - aqueon,

Aqueon smartclean power filter - aqueon,

$26.98
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Penn plax cascade - plax, 1000

Penn plax cascade - plax, 1000

$99.95
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Uimoso 264 gph stage - uimoso, 2-stage

Uimoso 264 gph stage - uimoso, 2-stage

$63.99
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Aquarium waterfall filter - aquarium,

Aquarium waterfall filter - aquarium,

$9.98
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Electric power filter - electric,

Electric power filter - electric,

$10.99
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Uimoso stage external - uimoso, 4-stage

Uimoso stage external - uimoso, 4-stage

$79.99
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Quiet hang back - hang,

Quiet hang back - hang,

$65.61
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Sunwen external canister - sunwen,

Sunwen external canister - sunwen,

$203.83
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Quiet hang back aquarium - hang,

Quiet hang back aquarium - hang,

$35.62
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Sunwen aquarium external - aquarium,

Sunwen aquarium external - aquarium,

$143.43
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Fluval 407 canister filter - fluval,

Fluval 407 canister filter - fluval,

$199.00
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External aquarium filter - aquarium,

External aquarium filter - aquarium,

$48.60
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Uimoso external aquarium - external,

Uimoso external aquarium - external,

$89.99
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Aquarium external canister - aquarium,

Aquarium external canister - aquarium,

$48.60
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Bio sponge filter breeding fry - bio,

Bio sponge filter breeding fry - bio,

$9.99
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Fluval power filter size - fluval,

Fluval power filter size - fluval,

$52.99
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Dennerle scaper flow hang on - flow, hang-on

Dennerle scaper flow hang on - flow, hang-on

$45.00
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Aqueon replacement filter - aqueon,

Aqueon replacement filter - aqueon,

$28.95
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Vevor canister filter - filter, gph

Vevor canister filter - filter, gph

$79.99
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Vevor 224 5gph canister - 224.5gph, filter

Vevor 224 5gph canister - 224.5gph, filter

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

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

$51.99
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Aqueon high quality - aqueon,

Aqueon high quality - aqueon,

$14.95
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Api filstar canister - api,

Api filstar canister - api,

$139.00
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Sunsun aquarium external - sunsun,

Sunsun aquarium external - sunsun,

$153.99
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Seachem large aquarium - –,

Seachem large aquarium - –,

$87.09
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Fluval fx6 aquarium canister - aquarium,

Fluval fx6 aquarium canister - aquarium,

$337.99
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Cfs 130 aquarium canister - cfs,

Cfs 130 aquarium canister - cfs,

$39.95
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Ultra quiet external - ultra-quiet,

Ultra quiet external - ultra-quiet,

$132.99
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Cfs 700 aquarium canister - cfs,

Cfs 700 aquarium canister - cfs,

$169.95
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Aquatop gph media - aquatop,

Aquatop gph media - aquatop,

$38.00
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Pcs bio double - 4,

Pcs bio double - 4,

$14.98
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Sunsun stage external - 3-stage,

Sunsun stage external - 3-stage,

$43.99
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Canister filter external - canister, filter,

Canister filter external - canister, filter,

$112.98
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Fluval 107 performance - 107,

Fluval 107 performance - 107,

$120.00
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External hang back - external, aquarium

External hang back - external, aquarium

$43.13
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Vevor canister filter 317 - vevor,

Vevor canister filter 317 - vevor,

$99.90
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Sunsun 106gph stage external - 3,

Sunsun 106gph stage external - 3,

$43.99
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Uimoso 528gph stage - uimoso,

Uimoso 528gph stage - uimoso,

$88.96
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Aquarium filter pre - aquarium, pre-filter

Aquarium filter pre - aquarium, pre-filter

$68.94
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Aquarium water inlet outlet - aquarium,

Aquarium water inlet outlet - aquarium,

$10.48
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Tetra whisper bio bag - tetra, bio-bag

Tetra whisper bio bag - tetra, bio-bag

$21.99
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Pondforse canister filter - pondforse,

Pondforse canister filter - pondforse,

$50.00
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Aqua tech change aquarium - ez,

Aqua tech change aquarium - ez,

$17.62
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External canister aquarium - external,

External canister aquarium - external,

$100.91
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Aquarium external canister - aquarium,

Aquarium external canister - aquarium,

$79.99
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Uimoso external aquarium - uimoso,

Uimoso external aquarium - uimoso,

$74.99
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Fluval fx4 aquarium canister - fx4,

Fluval fx4 aquarium canister - fx4,

$283.99
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Fluval 407 performance - fluval,

Fluval 407 performance - fluval,

$215.99
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Free shipping fluval 407 - shipping,

Free shipping fluval 407 - shipping,

$210.00
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Fluval 406 external canister - fluval,

Fluval 406 external canister - fluval,

$125.00
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Cnz sun 704b 525 gph - hw-704b,

Cnz sun 704b 525 gph - hw-704b,

$119.99
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Fluval 404 external canister - 404,

Fluval 404 external canister - 404,

$123.00
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Stage external canister - 3-stage,

Stage external canister - 3-stage,

$56.99
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Aquarium fish tank - tank, mini

Aquarium fish tank - tank, mini

$9.99
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264gph canister filter - 264gph,

264gph canister filter - 264gph,

$98.28
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Huge lot fluval - lot, canister

Huge lot fluval - lot, canister

$369.00
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Fluval ac70 aquarium - fluval, power

Fluval ac70 aquarium - fluval, power

$52.99
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Aquael ultramax 1000 external - aquael,

Aquael ultramax 1000 external - aquael,

$215.99
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Eheim ecco pro - ecco, /

Eheim ecco pro - ecco, /

$149.00
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Fluval 307 performance - fluval,

Fluval 307 performance - fluval,

$182.99
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Oase biomaster thermo - thermo, 250

Oase biomaster thermo - thermo, 250

$149.99
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Aquarium pump 650f - pump, sf-650f-uv

Aquarium pump 650f - pump, sf-650f-uv

$64.98
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Uimoso 264gph stage external - 264gph,

Uimoso 264gph stage external - 264gph,

$54.99
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Roll pinky filters for - roll,

Roll pinky filters for - roll,

$14.99
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Uimoso stage external - 3-stage,

Uimoso stage external - 3-stage,

$65.90
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Aquarium hang filter pump - hang,

Aquarium hang filter pump - hang,

$9.68
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Aquarium canister filter - aquarium,

Aquarium canister filter - aquarium,

$96.99
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Aquarium waterfall filter - waterfall,

Aquarium waterfall filter - waterfall,

$9.99
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Oase biomaster thermo - biomaster, 350

Oase biomaster thermo - biomaster, 350

$269.99
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Aquarium filter with - aquarium,

Aquarium filter with - aquarium,

$30.06
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Jebao canister external - canister,

Jebao canister external - canister,

$84.98
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Aquarium external ultra - aquarium,

Aquarium external ultra - aquarium,

$120.00
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Hang back aquarium - hang-on,

Hang back aquarium - hang-on,

$48.41
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High performance ultra quiet - high-performance, ultra-quiet

High performance ultra quiet - high-performance, ultra-quiet

$95.99
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📊96 listings · from $9.68 · avg $85.5

Browse 96 external filter listings currently in our index. Prices range from $9.68 to $369, with an average of $85.5. 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 $369 — giving you a wide budget spread to work with. The average price of $85.5 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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