10 Best Aquarium Canister Filters

After analyzing 334 products, scanning 1610 reviews, spending more than 36 hours of research and speaking with our test users, we think the MarineLand Magniflow Canister Filter for Aquariums is the one of the Best Aquarium Canister Filter on the market.

MarineLand Magniflow Canister Filter for Aquariums – Best Overall Aquarium Canister Filter

MarineLand Magniflow Canister Filter for Aquariums
  • Canister lids ensures water tight seal
  • The polishing filter pad acts as a water polisher removing fine debris
  • The bio-filter balls and ceramic rings provide a large, multifaceted surface area for the growth of bio spires
  • Black Diamond Carbon Removes odors, discoloration and water impurities
  • Filter Foam pads screen out dirt and debris

Fluval 206 External Filter

Fluval 206 External Filter
  • Multi-stage filtration for healthy fresh & saltwater aquariums
  • Suitable for aquariums up to 45 gallons
  • Sound dampening impeller design for a quieter operation
  • Equipped with a clog-proof intake strainer and a dual layer foam screen
  • Built with a patented Aquastop Valve, multiple filtration baskets, and rim connector assemblies; 3 year warranty

Penn Plax Cascade 500 GPH Canister Filter

Penn Plax Cascade 500 GPH Canister Filter
  • Large capacity stackable media trays allow for multi-stage filtration
  • Quick & easy push-button primer and two independent 360 degree rotating taps
  • Flow rate shut-off valves adjust water flow and provide for easy maintenance

Hydor Professional 350 Canister Filter

Hydor Professional 350 Canister Filter
  • The hydor professional 350 Aquarium External 280GPH Filter is a complete eco-system in a box
  • All the biological, mechanical and chemical filtration that any requires for a healthy and long-lived Aquatic experience
  • From the easy priming feature to the telescopic intake tubes, everything had been made easy

Fluval Canister Filter

Fluval Canister Filter
  • Multi-Stage Filter that produces healthy aquarium water, freshwater or marine aquariums
  • Features Smart Pump Technology for optimal filter performance, efficiency and management
  • Self-starting filter-just add water and plug in. Head height (maximum): 3.3 m (10.8 feet)
  • Built with a monthly maintenance reminder
  • For aquariums up to 400 gallons

SunSun HW-302 3-Stage External Canister Aquarium Filter 264GPH – Best Budget Aquarium Canister Filter

SunSun HW-302 3-Stage External Canister Aquarium Filter 264GPH
  • Canister filters for aquariums use high water pressure, from a properly powered pump, to force water through the dense filter media. A pump can draw water from an under-gravel filter, and run it into a canister for double filtration
  • 3 media trays capable of handling your choice of filtration media; Comes with an adjustable spray bar. This is a helpful feature if you want to adjust the output flow from the filter
  • Convenient self-priming pump that eliminates the need for manual siphoning; Single valve disconnect & priming pump ease routine maintenance
  • Provides quiet, efficient filtration for fresh and saltwater aquariums is great for living rooms, offices or bedrooms

Fluval Canister Filter

Fluval Canister Filter
  • Multi-stage filter pumps out 700 US Gal (2650 L) of water per hour
  • Smart Pump advanced microchip technology continuously monitors and optimizes pump performance
  • Self-starting - just add water, plug in and Smart Pump will take over. Trapped air auto-evacuated every 12 hours to ensure maximum efficiency
  • Easy water changes eliminate need to lift heavy buckets. Simply attach hosing to output and Smart Pump does the rest
  • Removable, stackable media baskets eliminate water bypass and hold a total of 1 US Gal (3.9 L) of media
  • Compact 41.9 cm (16.5 in) tall design - easily fits under most aquariums
  • All filter media included - mechanical, chemical and biological

Sunsun HW-304B 525 GPH 5-Stage External Canister Filter with 9-watt

Sunsun HW-304B 525 GPH 5-Stage External Canister Filter with 9-watt
  • Good for up to 150 gallon fish tanks
  • Dimension: 11" L X 11" W X 17" H
  • Flow rate: 525 GPH (2000L/hr.)
  • Built in 9 Watt UV sterilizer for controlling algae spores/bacteria and promoting clear water

EHEIM Classic 250 External Canister Filter

EHEIM Classic 250 External Canister Filter
  • Permo-elastic silicon sealing ring fixed on the pump head for easy and safe closing after cleaning
  • Equipped with filter sponges and/or loose filter media
  • Accessories included: spray bar, inlet pipe, hose and installation accessories
  • Comes complete with filter media (EHEIM Mech & Substrat Pro) and valves
  • Permo-elastic silicon sealing ring fixed on the pump head for easy and safe closing after cleaning
  • Equipped with filter sponges and/or loose filter media
  • Accessories included: spray bar, inlet pipe, hose and installation accessories
  • Comes complete with filter media (EHEIM Mech & Substrat Pro) and valves
  • Comes complete with filter media (EHEIM Mech & Substrat Pro) and valves

SunSun HW-303B 4-Stage External Canister Aquarium Filter w/ UV sterilizer

SunSun HW-303B 4-Stage External Canister Aquarium Filter w/ UV sterilizer
  • Canister filters for aquariums use high water pressure, from a properly powered pump, to force water through the dense filter media. A pump can draw water from an under-gravel filter, and run it into a canister for double filtration
  • 3 media trays capable of handling your choice of filtration media; Comes with an adjustable spray bar. This is a helpful feature if you want to adjust the output flow from the filter
  • Built in 9 Watt UV sterilizer to help kill algae spores and bacteria, promoting crystal clear water
  • Convenient self-priming pump that eliminates the need for manual siphoning; Single valve disconnect & priming pump ease routine maintenance
  • Provides quiet, efficient filtration for fresh and saltwater aquariums is great for living rooms, offices or bedrooms

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