Aquarium external filter deals(Disclaimer)
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🏅 73 Aquarium External Filter in price comparison
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💶 Current offers and discounts
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🕝 Last updated on 14.10.2026
6% discount
Fluval 207 External Filter | Aquarium Canister Filter
Fluval eTEC (Efficient Technology) construction employs cutting-edge design Powerful motor generates constant pumping power and pressure that endures over time Re-engineered, precision-crafted pump runs up to 25% quieter than previous generation New ergonomic AquaStop valves with raised lip for smoother operation Unique vertical pre-filter cartridge with independent access provides more surface area and better mechanical filtration
£ 124.99
£ 132.35
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5% discount
Hidom External Aquarium Canister Filter System 22w 1000 LPH - EX-1000 - Media Included
Suitable for freshwater(coldwater or tropical) & marine aquariums Recommended Tank Size: up to 400 litres Tray Layers x 3 Supplied with ceramic Rings, activated Carbon, 2 x fine filter foam Dimensions: 360mm (H) x 240mm x 230mm.
£ 59.95
£ 62.95
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8% discount
Fluval 407 External Filter
Fluval eTEC (Efficient Technology) construction employs cutting-edge design, materials & manufacturing methods to deliver powerful pump performance, reduced energy consumption & ultra-quiet operation Powerful motor generates constant pumping power and pressure that endures over time Re-engineered, precision-crafted pump runs up to 25% quieter than previous generation Energy-efficient some 07 series filters draw as little energy as a single household LED lightbulb Redesigned, substantially enlarged rubber feet stabilizers offer superior vibration-dampening ability and added protection
£ 216.99
£ 234.98
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JBL CristalProfi e902 Greenline Aquarium, Black
External filter for clean and healthy aquarium water: closed water circuit for aquariums with 90 -300 litres (80 - 120 cm) Fully equipped and ready to connect: built-in quick-start priming button, filter start without manual priming.
£ 127.96
free delivery
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Fluval 107 External Filter, 1 kg
Fluvial eTEC (Efficient Technology) construction employs cutting-edge design, materials & manufacturing methods to deliver powerful pump performance, reduced energy consumption & ultra-quiet operation Powerful motor generates constant pumping power and pressure that endures over time Re-engineered, precision-crafted pump runs up to 25% quieter than previous generation Model number: HGA440NET
£ 109.99
free delivery
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Hidom External Aquarium Canister Filter System 28w 1200 LPH - EX-1200 - Media Included
Suitable for freshwater(coldwater or tropical) & marine aquariums Recommended Tank Size: up to 600 litres Tray Layers x 4 Supplied with ceramic Rings, activated Carbon, bio balls2 and fine filter foam Dimensions: 415mm (H) x 240mm x 230mm.
£ 64.94
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allpondsolutions 1000EF Aquarium External Fish Tank Water Filter for Coldwater, Tropical or Marine Aquariums, for Tanks Up to 400 Litres – Includes Filter Media, hose and Spray Bar - Full Kit
The efficient AllPondSolutions 1000EF External Aquarium Filter system utilises a multi-stage approach to filtration.
£ 64.99
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1400L/H Ultra-Silent External Fish Tank Filter Canister with Adjustable Flow Rate, Multiple Bio-Function External Aquarium Filter with Filter Sponge, Activated Carbon, Bio-Ball for Fresh & Saltwater
【Multi-Stage High-Efficiency Filtration】The external fish tank filter utilizes multi-stage filtration system, with each layer packed with filter cotton & activated carbon & bio-ball.
£ 89.99
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Fluval FX4 External Filter, 1000 Litre
Suitable for aquariums up to 1000L Multi-stage filter pumps out 2650L of water per hour "Smart Pump" advanced microchip technology monitors & optimises pump performance All filter media included (mechanical, chemical & biological) Suitable for freshwater and marine aquariums
£ 247.99
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Fishnanny External Fish Tank Filter Ultra-Quiet, External Aquarium Filter Canister with Filter Media，Canister filter Aquarium Cartridge Include Sponge,Bio-ball,Activated Carbon, 18W for 250L Aquariums
【Efficient Filtration System】This canister filter aquarium features multi-layer premium filter media,providing triple-stage filtration—mechanical, chemical, and biological.
£ 89.99
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Oase FiltoSmart Thermo 200 Aquarium Filter, External Aquarium Filter for Freshwater and Marine Aquariums up to 200 L, including Heater HeatUp 200 W
INTEGRATED HEATER: Fitted with a HeatUp 200 adjustable control heater, this fish tank filter gives you precise control over water temperature without taking space inside the tank.
£ 96.49
£ 98.96
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Fluval 307 External Filter, 1 kg
Fluvial eTEC (Efficient Technology) construction employs cutting-edge design, materials & manufacturing methods to deliver powerful pump performance, reduced energy consumption & ultra-quiet operation Powerful motor generates constant pumping power and pressure that endures over time Re-engineered, precision-crafted pump runs up to 25% quieter than previous generation
£ 159.99
free delivery
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allpondsolutions 1400EF Aquarium External Fish Tank Water Filter for Coldwater, Tropical or Marine Aquariums, for Tanks Up to 600 Litres – Includes Filter Media, hose and Spray Bar - Full Kit
Multi Layer Filtration System (Filter media included) Quiet running / Low noise Self Priming External Filter with Easy Clean Tap Shut Off System Hose size: 20mm Outside diameter, 15mm Inside diameter Dimensions: 258 x 258 x 430 mm
£ 74.99
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allpondsolutions EF-250 Aquarium External Fish Tank Water Filter for Coldwater, or Tropical Aquariums, for Tanks Up to 250 Litres – Includes Filter Media, hose and Spray Bar - Full Kit
This efficient AllPondSolutions 800L/h EF-250 external aquarium filter system utilizes a multi-stage approach to filtration and is suitable for aquariums up to 250L. Filtering aquarium tank water through three coarse filter foams of different grades, a filter floss pad, and bio-balls provides thorough biological and mechanical filtration.
£ 42.99
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Oase FiltoSmart 60 Aquarium Filter, External Aquarium Filter for Freshwater and Marine Aquariums up to 60 L, 5 W
ADVANCED FILTRATION: The multi-layer filtration system uses both mechanical and biological media, effectively removing fine debris and harmful substances while promoting beneficial bacteria growth.
£ 46.29
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VILLNO 1000LPH 3-STAGE Aquarium Filter, SUPER-QUIET External Canister Filter, Adjustable Fish Tank Filter with Aquarium Filter Media and Complete Accessories for 80-300L Fish Tank
VILLNO
£ 75.97
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Fishnanny External Filter Aquarium mit DC Controller & Feeding Pause Mode, Quiet Adjustable Flow External Fish Tank Filters ≤25dB, 5-Stage Canister Filter with Sponge & Quartz-Ball for Fresh/Saltwater
Fishnanny
£ 79.99
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Eheim Professional 4+ External Filter 350 (2273) Aquarium Filtration
Minimum Tank Size 180L Can be Used For Aquariums up to 350L Filter Volume Holds 5L Max Height 1,050L Suitable for Marine & Fresh Water Tanks
£ 199.95
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fishkeeper Canister Filters, 211GPH Self-Priming External Fish Tank Filters | 18W 2-Stage Filtration & Ultra-Quiet Canister Filters 800L/H Up to 45Gal for Fresh & Saltwater Tanks
Quick & Easy Self-Priming Canister Filter:Once your external canister filter is properly installed, simply plug it in — this self-priming model starts working immediately.
£ 86.27
free delivery
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Oase FiltoSmart Thermo 100 Aquarium Filter, External Aquarium Filter for Freshwater and Marine Aquariums up to 100 L, including Heater HeatUp 100 W
INTEGRATED HEATER: Fitted with a HeatUp 100 adjustable control heater, this fish tank filter gives you precise control over water temperature without taking space inside the tank.
£ 83.99
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Weipro External Fish Tank Filter with 4-Stage Biochemical Sponge Filtration, 10W Adjustable Water Flow Aquarium Canister Filter Pump for 60l ~ 300l Freshwater Saltwater Fish Tank, FE-700(700L/H)
[4-Layer Sponges] The new cylindrical external filter comes with 4 compartments with 4 filter sponges of different densities, which can adsorb different shapes of impurities and suspended particles to keep your aquarium water stays fresh, suitable for both tropical and cold water aquariums. [Refuse to Leak] Canister filter lid has a built-in large sealing ring and is equipped with 4 fixing buckles on the outside, multiple anti-leakage protection, eliminating water leakage. [Powerful Filtration] This fish tank external filter has a maximum flow rate of 700L/H, filtering more water per unit of time and shortening your cleaning time.
£ 65.99
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Oase BioMaster² 350 Aquarium Filter, Fish Tank Filter suitable for Freshwater and Marine Aquariums up to 350 L, 18 W
ENHANCED FLOW RATE: Updated connectors and optimised water routing give the BioMaster2 350 significantly higher flow rates for more uniform and healthier water conditions.
£ 177.43
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allpondsolutions 2000EF+ Aquarium External Fish Tank Water Filter with 9w UV Steriliser for Coldwater, Tropical or Marine Aquariums, for Tanks Up to 1000 Litres – Includes Filter Media, Full Kit
EF FILTER These filters work on the same principle as internal powerhead filters, but are positioned outside the tank and draw water into the filter through an inlet tube and return the water via an outlet tube.
£ 99.99
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AMOSIJOY 2-Stage Canister Filter, Ultra-Quiet External Aquarium Filter with UV Sterilizer and Free Media for Large Fish Tanks and Aquariums (225GPH)
Amosijoy Canister Filter:AMOSIJOY external aquarium filter runs at 225GPH(850L/H), wattage is 9w, dimension is 14.2’’×10’’×8’’.
£ 82.43
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allpondsolutions EFX+ Aquarium External Fish Tank Water Filter with 9w UV Steriliser for Coldwater, Tropical or Marine Aquariums, for Tanks Up to 400 Litres
For marine fish keepers, we have paid special attention to improving existing fittings so they last longer in a salt water environment.
£ 84.99
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EHEIM Professionel 4+ External Filter 250
For aquariums from 120 lt to 250 lt Additional control function (Xtender) to counteract blocked filter media and extend intervals between cleaning Top prefilter effectively traps large dirt particles and allows for longer service intervals.
£ 167.09
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hygger External Filter Aquarium 9W Dual Flow Water Filter, 450L/H Hang On Aquarium Filter for 27-74L Fish Tank Collection Waste Discharge for Freshwater Saltwater
hygger
£ 42.99
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All Pond Solutions Aquarium External Fish Tank Filter 1000 Litre/ Hour Plus 9W UV Light Free Filter Media
Filter media included - Bio balls, Ceramic Rings and Active Carbon Quiet running and Low noise with built in 9W UV Clarification Self Priming External Filter with Easy Clean Tap Shut Off System Hose size: 20mm / 0.8Inch Outside, 15mm / 0.6Inch Inside Diameter
£ 74.98
free delivery
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Aqua One Ocellaris 850 Canister Filter
High quality external filter All media included Quick release tap system Easy start manual primer Ocellaris 850 canister filter
£ 80.73
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Finest-Filters Aquarium External Canister Filter with UV Steriliser for Fish Tank 1000/1400 / 2000lph (HW-704B (2000l/h + 9w UV))
The Finest Filters new and improved range of external canister filters can easily be connected to aquariums up to 1000 litres in size (depending on model), and are suitable for all water types, including coldwater, tropical freshwater and saltwater (marine) aquariums.
£ 109.99
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Oase FiltoSmart 100 Aquarium Filter, External Aquarium Filter for Freshwater and Marine Aquariums up to 100 L, 11 W
ADVANCED FILTRATION: The multi-layer filtration system uses both mechanical and biological media, providing a large filter surface that effectively removes fine debris and harmful substances while promoting beneficial bacteria growth
£ 67.46
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Eheim external aquarium filter eXperience 150, voltage: 230 volts, 150 litres.
1304410 Item Weight: 1.0 kg 150 litres
£ 127.01
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Aqua One Ocellaris External Aquarium Filter Canister (400)
Quiet, Energy Efficient and small economic design Utilizes Ceramic noodles, Activated Carbon and a coarse sponge for exceptional Filtration Suitable for Both Freshwater and Marine life.
£ 41.18
free delivery
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Exo Terra External Turtle Filter FX-200
provides an odor reducing filtering system for turtle tanks complete with spray bar system for better aeration greatest flexibility in servicing mechanical, chemical and adsorptive filtration media
£ 78.96
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Seachem Tidal Filter 75
Heater holder Surface skimmer Large-capacity filter basket Intake flow regulation Telescoping intake pipe Note : The item is designed to hang behind the aquarium and please ensure to check if it is suitable for your aquarium
£ 65.31
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Aquis 750 External Canister Filter
Professional quality filtration including superior biological filter media.
£ 79.98
free delivery
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Eheim 2217 External Filter
EHEIM 2217 CANISTER FILTER The classic external power filters, high quality, reliable and highly efficient for fresh and marine water aquariums up to 600ltr Pump output 1000l/h Filter circulation 790l/h The classic one-chamber design allow for the greatest flexibility in set up for mechanical, biological, chemical and adsorptive (carbon) filtration.
£ 162.95
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AllPondSolutions 1000L/H Aquarium External Filter EF1
The new and improved EF range of external fish tank filters from AllPondSolutions.
£ 74.98
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Eheim Classic 600 2217020 External Filter for Aquarium 1000 L/h < 600 L with Tap
Suitable for aquariums between 180 and 600 litres Flow rate 1000l/h for a consumption of 20w Suitable for fresh and sea water
£ 192.15
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Seachem Aquarium Fish Tank Filter,Black,Tidal 110 Gallon (400 Liters) – Large
Bottom-to-top flow Adjustable leveling device Self-cleaning impeller, Self-priming pump No filter cartridges, No mess maintenance Intake flow regulation
£ 73.70
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JBL CristalProfi e702 Greenline Aquarium, Black
External filter for clean and healthy aquarium water: closed water circuit for aquariums with 60 - 200 litres (60 - 100 cm) Fully equipped and ready to connect: built-in quick-start priming button, filter start without manual priming.
£ 112.09
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Hydor External Heater Aquariums ETH 300 W Sump and External Filters, Safe and Precise, Tube Diameter 16 mm
Innovative external heater for aquariums with high efficiency and durability.
£ 55.95
free delivery
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Eheim Pro 4+ External Filter 600 (2275) Aquarium Filtration
Made for Aquariums 120L to 600L Pumping 1,250 L/PH Max Pumping Height 1.80M Filter Volume 6.50L Suitable for Fresh & Marine Aquariums
£ 254.79
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PONDFORSE 265GPH Canister Filter, 3-Stage External Aquarium Filter Ultra-Quiet Water Circulation Cleaning Machine with Media for Fish Tanks and Aquariums Up to 75 Gallons (265GPH)
【Efficient Filtration Capabilities】 The PondForse canister filter utilizes multiple layers of filtration media to remove particles and impurities from the aquarium water.
£ 74.94
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Tetra Aquarium External Filter EX 700 Plus - Powerful Filter for Aquariums up to 200 L, Creates Crystal Clear Fish-Friendly Water
Complete set with all filter materials for quick and easy activation Suitable for aquariums with capacities up to 100-200 litres Provides fish safe and crystal clear water for fascinating views of the underwater world Exceptionally powerful, yet energy efficient and quiet It incorporates a suction aid to start the filter, valves for precise control of the water flow and a pre-filter function to minimize maintenance
£ 168.97
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AllPondSolutions Pressurised Koi Fish Pond Filter with UV Steriliser – All in one UV Pond Filter System - Easy to Clean & Maintain - for Outdoor Ponds Up to 5000 litres - PFC-5000
AllPondSolutions range of pressurised pond filters with built-in UV clarifiers are designed to be continuously pressurised by your pond pump, maintaining excellent water quality for healthy fishkeeping.
£ 109.99
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Aquarium Wall Mounted Hang On Filter - External Filter Barrel Small Silent Fish Tank Filter for Water Purification & Circulation System
【Efficient Multi-Layer Filtration】: Features an external filter with multiple biochemical filtration and three-layer physical filtration, working layer by layer to clarify tank water effectively.
£ 45.19
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OASE BioMaster 2 Thermo 600
OPTIMIZED FLOW & FILTRATION FOR CLEAR WATER - The next generation of BioMaster has upgraded features to boost performance.
£ 399.84
free delivery
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Aqua One Aquis 1250 Pressurised Canister Filter, Suitable for Aquariums up to 300L
Professional quality filtration including superior biological filter media.
£ 97.05
free delivery
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Fluval FX2 External Aquarium Filter
Smart Pump Technology (SPT) ensures optimal performance Suitable for freshwater & saltwater Includes all media required for highly effective filtration Compact, space saving design Ideal for aquariums up to 175 gallons
£ 224.99
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Betta 2000 Canister External Aquarium Filter ~ Tank Size Up to 540 Litres
perfect filter for aquariums up to 540 litres
£ 112.69
free delivery
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JBL CristalProfi e1502 Greenline Aquarium, Black
External filter for clean and healthy aquarium water: closed water circuit for aquariums with 200 -700 litres (100 - 150 cm) Fully equipped and ready to connect: built-in quick-start priming button, filter start without manual priming.
£ 190.62
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Hydor Self-priming External Filter PRIME 10, Aquariums 80-150 Litres, Sponges Rings Filtering Wool
Innovative external filter for aquariums complete with self-priming system, practical and easy to use.
£ 69.99
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OASE BioMaster 2 600 Canister Filter for Aquariums – External Aquarium Filter with EasyClean Pre-Filter – Quiet Performance – Freshwater & Saltwater, Up to 160 Gallons
OPTIMIZED FLOW & FILTRATION FOR CRYSTAL CLEAR WATER – The next generation of BioMaster has updated features for increased performance.
£ 368.16
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Sunsun 3000l/h External Canister Filter for Fish Tank Aquarium with UV Flow Control
5-Stage canister with 9W UV steriliser 240V 50Hz with UK power plug LCD display which control the operation time of the UV and the pump speed Adjustable Flow: 1200 l/h to 3000l/h 6 operating Flow speeds (1200l/h, 1600l/h, 2000l/h, 2400l/h, 2700l/h, 3000l/h).
£ 179.99
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Tararium Internal Aquarium Filter for 150-600L Tanks, 1500L/h Flow & 7W UV Clarifier – Multi-Stage Filtration with Air Supply for Freshwater, Saltwater & Turtle Pond, Delivers Crystal Clear Water
【Crystal Clear Water in 3-7 Days】Effectively clears cloudy and green water in 3-7 days (time varies with tank size), reducing the need for frequent water changes 【Dual-Stage Filtration System】Combines biochemical sponge filtration with 254nm U-V light treatment for superior water purification 【Independent Control Switches】Operate the water pump and U-V light separately, allowing flexible use without disrupting filtration 【Eliminates Unpleasant Odors】Neutralizes fish tank smells caused by green water, keeping the aquarium environment fresh 【Visible U-V Light Indicator】Easily check if the U-V light is on without disassembling the unit, ensuring proper function
£ 49.99
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Eheim Experience 250 External Filter
For Tank litre: 120-250 ltr Pump Output: 700 ltr Individually removable filter media containers with fold-away handles for easy handling and convenient full or intermediate cleaning
£ 134.99
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Fish Tank Canister Filter for Nano & Rimless Aquariums up to 7 Gal - 304 Stainless Steel Desktop External Filter with USB Pump (MiniCanister)
【Easy Usage】 The matching filter media is pre-assembled in the drum and can be used directly. The arrangement of accessories and filter media has been carefully designed to enable quick disassembly and assembly for easy maintenance and cleaning. The bioball is equipped with mesh bags
£ 138.01
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Jebao 402 One Touch External Fish Tank Canister Aquarium Filter System 20w 1000 LPH
Suitable for freshwater(coldwater or tropical) & marine aquariums Powerfull 1000 LPH pump (litres per hour) Multi-stage filtration 2 filter baskets Media included - fine poly foam, activated carbon and alfagrog, one of the most effective biological media available
£ 61.99
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Finest-Filters Aquarium External Canister Filter for Fish Tank 1000/1400 / 2000lph (HW-702A (1000lph))
The Finest Filters new and improved range of external canister filters can easily be connected to aquariums up to 1000 litres in size (depending on model), and are suitable for all water types, including coldwater, tropical freshwater and saltwater (marine) aquariums.
£ 74.99
free delivery
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AQQA 475GPH Canister Filter, Ultra-Quiet 3-Stage Filtration Aquarium Filter
Powerful Steady Output: Power:25W, Max Water Flow:475GPH, the energy-efficient motor operates with excellent stability, providing a continuous and reliable power source for the filtration process, and reducing electricity consumption while delivering powerful filtration performance.
£ 97.46
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Fishnanny External Fish Tank Filter Ultra-Quiet, External Aquarium Filter Canister with Filter Media，Canister filter Aquarium Cartridge Include Sponge,Bio-ball,Activated Carbon, 25W for 350L Aquariums
【Efficient Filtration System】This canister filter aquarium features multi-layer premium filter media,providing triple-stage filtration—mechanical, chemical, and biological.
£ 99.99
free delivery
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Tetra Aquarium External Filter EX 1500 Plus - Powerful Filter for Aquariums up to 600 L, Creates Crystal Clear Fish-Friendly Water
Complete set with all filter materials for quick and easy activation Valid for aquariums with capacities up to 300-600 liters Provides fish safe and crystal clear water for fascinating views of the underwater world Exceptionally powerful, yet energy efficient and quiet It incorporates a suction aid to start the filter, valves for precise control of the water flow and a pre-filter function to minimize maintenance
£ 302.79
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Oase FiltoSmart 300 Aquarium Filter, External Aquarium Filter for Freshwater and Marine Aquariums up to 300 L, 23 W
ADVANCED FILTRATION: The multi-layer filtration system uses both mechanical and biological media, providing a large filter surface that effectively removes fine debris and harmful substances while supporting beneficial bacteria growth
£ 100.60
free delivery
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Aquarium Wall Mounted Hang On Filter - External Filter Barrel Small Silent Fish Tank Filter for Water Purification & Circulation System
【Efficient Multi-Layer Filtration】: Features an external filter with multiple biochemical filtration and two-layer physical filtration, working layer by layer to clarify tank water effectively.
£ 42.69
free delivery
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AQQA External Aquarium Filter, 1200L/h Adjustable Canister Filter Aquarium, External Filter for Tanks up to 250L - Includes 3-Stage Filtration & Complete Accessories
AQQA
£ 62.29
free delivery
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Finerfilters 4 Stage Compact RODI Reverse Osmosis Filter System with DI Resin Stage for Aquariums, suitable for Tropical/Marine/Discus Fish etc. (50 GPD)
Finerfilters 4 stage compact reverse osmosis RO system with DI resin filter.
£ 56.99
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Oase FiltoSmart Thermo 300 Aquarium Filter, External Aquarium Filter for Freshwater and Marine Aquariums up to 300 L, including Heater HeatUp 300 W
INTEGRATED HEATER: Fitted with a HeatUp 300 adjustable control heater, this fish tank filter gives you precise control over water temperature without taking space inside the tank
£ 111.92
free delivery
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Internal Fish Tank Filter with 5W UV Light, Multi Filter Materials, Adjustable Water Flow Submersible 700L/H Aquarium Filter Pump for 120l ~ 180l Freshwater, Aeration & Rainfall Modes, TU-700(700L/H)
Weipro
£ 54.99
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Tararium 1200L/H Aquarium Filter Pump with 5W U-V Light for 120-400L Fish Tanks, Submersible Internal Filter with Oxygenation & Flow System for Tropical & Coldwater Aquariums
【Crystal Clear Water】Features a built-in 254nm UV light to help maintain clean, clear aquarium water, reducing the need for frequent water changes 【Dual Independent Switches】Separate controls for the water pump and UV light, allowing you to operate only the pump when needed for flexible usage.
£ 36.99
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Tararium Hang-on-Back Aquarium Filter with U-V Light - 600L/H 4-Stage Power Filtration for 10-40 Gallon (40-150L) Tanks - Surface Skimmer & Adjustable Flow for Freshwater/Saltwater & Turtle Tanks
Tararium
£ 39.99
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allpondsolutions 2000EF Aquarium External Fish Tank Water Filter for Coldwater, Tropical or Marine Aquariums, for Tanks Up to 1000 Litres – Includes Filter Media, hose and Spray Bar - Full Kit
Multi Layer Filtration System (Filter media included) Quiet running / Low noise Self Priming External Filter with Easy Clean Tap Shut Off System Hose size: 25mm Outside diameter, 18mm Inside diameter Dimensions: 290 x 290 x 485 mm
£ 89.99
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Tararium Internal Filter for 300-1200L Tanks, 2300L/h Submersible Pump with 9W UV Clarifier, Freshwater & Saltwater Aquarium Cleaner with Aeration & Strong Flow
【Crystal Clear Water in 3-7 Days】Eliminates cloudy and green water, reducing tank maintenance.
£ 59.99
free delivery
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We have found a total of 73 Aquarium External Filter deals for you at amazon, ebay, ONBuy UK, and other shops. The most popular brands are: allpondsolutions, Oase, and Eheim. Today's offer is Fluval 207 External Filter | Aquarium Canister Filter with 6% discount. The lowest price we found in our deals is £ 36.99 . The highest price in our price comparison is £ 399.84 . Currently, we have selected 8 reliable shops for you to buy Aquarium External Filter affordably.