10 Best External Aquarium Filters

Updated November 2024

Top Choice

Polar Aurora Free Media 3-Stage External Canister Filter with 9-watt Uv Sterilizer

9.7

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Zoo Med 501 Turtle Canister Filter

Zoo med laboratories inc

9.4

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Polar Aurora Free Media 3-Stage External Aquarium Filter 265gph with Builtin Pump Kit

9.2

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Polar Aurora 3-Stage External Aquarium Filter 265GPH with Builtin Pump Kit Canister New(265GPH)

9.0

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Finnex PX-360 Compact Canister Aquarium Filter

8.5

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Polar Aurora Free Media 4-Stage External Canister Filter with 9-watt Uv Sterilizer, 525

8.2

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Penn Plax Cascade CCF3UL Canister Filter For Large Aquariums and Fish Tanks –

7.9

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Penn Plax Cascade Hang-on Aquarium Filter with Quad Filtration System Cleans Up to

7.8

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Sunsun Tech'n'Toy HW-602B 106 GPH 3-Stage External Canister Filter

7.4

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Polar Aurora 3-Stage External Canister Filter with 9-watt UV Sterilizer for Aquarium 265

7.2

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Aquarium Filters