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    1. eBay
    2. Pet Supplies
    3. Fish & Aquarium
    4. Aquarium CO2 Equipment
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    Aquarium CO2 Equipment

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    • Fish & Aquarium
    • CO2 Equipment
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    • Type

      • CO2 Diffuser
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    • Brand

      • Aqua Medic
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    Shop by Type

    Showing slide {CURRENT_SLIDE} of {TOTAL_SLIDES} - Shop by Type

    • Complete CO2 System

      Complete CO2 System

    • CO2 Diffuser

      CO2 Diffuser

    • Pressure Regulator

      Pressure Regulator

    • CO2 Cylinder

      CO2 Cylinder

    • CO2 Reactor

      CO2 Reactor

    • Bubble Counter

      Bubble Counter

    • CO2 Adapter

      CO2 Adapter

    Best selling

    See all - Best selling

    Showing slide {CURRENT_SLIDE} of {TOTAL_SLIDES} - Best selling

    • 3 X 3-packs ISTA WATERPLANT Disposable Co2 Can Bottle Live Tank Aquarium Plants
      3 X 3-packs ISTA WATERPLANT Disposable Co2 Can Bottle Live Tank Aquarium Plants
      4.9 out of 5 stars
      (20)Total ratings 20,
      £13.75 New
    • ISTA Co2 Diffuser Set Disposable Can for Planted Freshwater Aquarium Beginners
      ISTA Co2 Diffuser Set Disposable Can for Planted Freshwater Aquarium Beginners
      4.5 out of 5 stars
      (13)Total ratings 13,
      £16.49 New
    • JBL ProFlora U501 Planted Aquarium Fish Tank Co2 System
      JBL ProFlora U501 Planted Aquarium Fish Tank Co2 System
      £134.83 New
    • Fluval Pressurised Co2 System Kit 88g Fish Tank
      Fluval Pressurised Co2 System Kit 88g Fish Tank
      4.3 out of 5 stars
      (9)Total ratings 9,
      £69.99 New
    • Fluval Planted Aquarium Fish Tank Pressurised Co2 Kit 95g
      Fluval Planted Aquarium Fish Tank Pressurised Co2 Kit 95g
      3 out of 5 stars
      (4)Total ratings 4,
      £70.45 New
    • JBL ProFlora U504 -plant Co2 System
      JBL ProFlora U504 -plant Co2 System
      £110.28 New
    • Tropica Plant Growth System 60 Pressurised Co2 Aquatic Plants
      Tropica Plant Growth System 60 Pressurised Co2 Aquatic Plants
      5 out of 5 stars
      (1)Total ratings 1,
      £18.99 New
    • ISTA Co2 100 Tablets Carbon Dioxide Diffuser for Freshwater Planted Aquariums
      ISTA Co2 100 Tablets Carbon Dioxide Diffuser for Freshwater Planted Aquariums
      £12.49 New
    • All

    • Auction

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    • Time: ending soonest
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    List view

    1-48 of 7,446 results

    • Full 2kg co2 for aquarium Fire Extinguisher

      Full 2kg co2 for aquarium Fire Extinguisher

      £10.00
      £7.99 postage
      Click & Collect
    • Dual Gauge Aquarium CO2 Regulator w/ Solenoid Bubble Counter W21.8 EU Plug

      Dual Gauge Aquarium CO2 Regulator w/ Solenoid Bubble Counter W21.8 EU Plug

      £35.28
      Free postage
      or Best Offer
    • ISTA WATERPLANT CO2 DIFFUSER SET SYSTEM GROWING LIVE FISH TANK AQUARIUM PLANTS

      ISTA WATERPLANT CO2 DIFFUSER SET SYSTEM GROWING LIVE FISH TANK AQUARIUM PLANTS

      4.5 out of 5 stars
      (13)13 product ratings - ISTA WATERPLANT CO2 DIFFUSER SET SYSTEM GROWING LIVE FISH TANK AQUARIUM PLANTS
      £16.49
      Free postage
      211 sold
      Click & Collect
    • SodaStream Adapter converter | Aquarium & Homebrew | TR21-4 To W21.8-14

      SodaStream Adapter converter | Aquarium & Homebrew | TR21-4 To W21.8-14

      £11.99
      Free postage
      or Best Offer
      Click & Collect
    • Ista Aquarium Disposable Co2 Canister x 3 in a Box

      Ista Aquarium Disposable Co2 Canister x 3 in a Box

      5 out of 5 stars
      (20)20 product ratings - Ista Aquarium Disposable Co2 Canister x 3 in a Box
      £13.75
      Free postage
      Click & Collect
    • Dennerle PH Controller 588 Comfort

      Dennerle PH Controller 588 Comfort

      £10.50
      £3.85 postage
      2 bids · Ending Sunday at 8:50PM GMT4d 7h
    • dennerle co2 including Tropica diffuser

      dennerle co2 including Tropica diffuser

      £60.00
      Free postage
    • Tropica Plant Growth System 60. Pressurised co2 for healthy live aquatic plants

      Tropica Plant Growth System 60. Pressurised co2 for healthy live aquatic plants

      5 out of 5 stars
      (1)1 product ratings - Tropica Plant Growth System 60. Pressurised co2 for healthy live aquatic plants
      £18.99
      Free postage
      136 sold
      Click & Collect
    • Glass CO2 Diffuser Atomiser Check Valve Drop Checker for Planted Aquarium

      Glass CO2 Diffuser Atomiser Check Valve Drop Checker for Planted Aquarium

      £5.99 to £7.99
      Free postage
      21 sold
      Click & Collect
    • CO2 Diffuser Solenoid Regulator Aquarium Atomizer For Fish Tank Glass UK

      CO2 Diffuser Solenoid Regulator Aquarium Atomizer For Fish Tank Glass UK

      £6.79
      Free postage
      Only 2 left
      Click & Collect
    • Ista CO2 100 Tablets Carbon Dioxide Diffuser for Freshwater Planted Aquariums

      Ista CO2 100 Tablets Carbon Dioxide Diffuser for Freshwater Planted Aquariums

      £12.49
      Free postage
      88 sold
      Click & Collect
    • Fluval Planted Aquarium Fish Tank Pressurised CO2 Kit 45g

      Fluval Planted Aquarium Fish Tank Pressurised CO2 Kit 45g

      4.5 out of 5 stars
      (7)7 product ratings - Fluval Planted Aquarium Fish Tank Pressurised CO2 Kit 45g
      £38.99
      £3.95 postage
      60 sold
      Click & Collect
    • Fluval CO2 45g / 95g Kits & Spares Plant Growth Health Aquarium Fish Tank

      Fluval CO2 45g / 95g Kits & Spares Plant Growth Health Aquarium Fish Tank

      3 out of 5 stars
      (4)4 product ratings - Fluval CO2 45g / 95g Kits & Spares Plant Growth Health Aquarium Fish Tank
      £4.95 to £70.45
      FAST & FREE
      43 sold
    • Fluval Aquarium Fish Tank 95g CO2 Disposable Cartridges

      Fluval Aquarium Fish Tank 95g CO2 Disposable Cartridges

      £12.39 to £35.99
      £3.95 postage
      92 sold
      Click & Collect
    • Co2Art Aquarium Regulators, Pro-Elite & -SE with Solenoid & Sodastream Adapter

      Co2Art Aquarium Regulators, Pro-Elite & -SE with Solenoid & Sodastream Adapter

      £26.99 to £229.99
      Free postage
      21 sold
      Click & Collect
    • Co2 art regulator and solenoid with extras

      Co2 art regulator and solenoid with extras

      £31.00
      £3.20 postage
      11 bids · Ending Thursday at 9:45PM GMT1d 8h
    • CO2 Regulator Aquarium Dual Gauge Display with inline defuser   

      CO2 Regulator Aquarium Dual Gauge Display with inline defuser   

      £24.00
      £3.20 postage
      5 bids · Ending Sunday at 5:28PM GMT4d 3h
    • SodaStream Hambleton Bard S30 Adapter Injector

      SodaStream Hambleton Bard S30 Adapter Injector

      5 out of 5 stars
      (5)5 product ratings - SodaStream Hambleton Bard S30 Adapter Injector
      £19.99
      Free postage
      83 sold
      Click & Collect
    • Aquarium Fish Tank CO2 Regulator Dual Gauge Bubble Counter Solenoid Valve UK

      Aquarium Fish Tank CO2 Regulator Dual Gauge Bubble Counter Solenoid Valve UK

      £46.88
      Free postage
      Click & Collect
    • JBL  Aquarium Fish Tank CO2 Pressure Regulator + inline co2 defuser 

      JBL Aquarium Fish Tank CO2 Pressure Regulator + inline co2 defuser 

      £21.00
      £3.20 postage
      7 bids · Ending Sunday at 5:41PM GMT4d 4h
    • JBL ProFlora u001 Aquarium Fish Tank CO2 Pressure Regulator

      JBL ProFlora u001 Aquarium Fish Tank CO2 Pressure Regulator

      £25.00
      £2.90 postage
      0 bids · Ending Saturday at 7:59PM GMT3d 6h
      Click & Collect
    • Fluval Co2 Kit x 2 plus spares.

      Fluval Co2 Kit x 2 plus spares.

      £25.00
      £4.00 postage
      or Best Offer
      0 bids · Ending Saturday at 3:02PM GMT3d 1h
      Click & Collect
    • Aquarium Fish Tank CO2 Regulator Dual Gauge Bubble Counter Solenoid Valve UK

      Aquarium Fish Tank CO2 Regulator Dual Gauge Bubble Counter Solenoid Valve UK

      £19.00
      £4.20 postage
      4 bids · Ending Friday at 9:43PM GMT2d 8h
      Click & Collect
    • ADA Moss Cotton 200m

      ADA Moss Cotton 200m

      £9.50
      £3.10 postage
      Only 1 left.
      Click & Collect
    • Scaper CO2 Diffuser - 25cm

      Scaper CO2 Diffuser - 25cm

      £22.04
      £3.99 postage
    • CO2 Generator for Plants Aquarium DIY CO2 Kit Pressurized with Bubble Counter UK

      CO2 Generator for Plants Aquarium DIY CO2 Kit Pressurized with Bubble Counter UK

      £22.43
      Free postage
    • Glass Drop Checker Co2 Monitor Tester For Aquarium Tank Fish

      Glass Drop Checker Co2 Monitor Tester For Aquarium Tank Fish

      £9.99
      Free postage
      42 sold
      Click & Collect
    • JBL ProFlora Direct Inline CO2 Diffuser for External Filter 12-19mm Membrane

      JBL ProFlora Direct Inline CO2 Diffuser for External Filter 12-19mm Membrane

      5 out of 5 stars
      (1)1 product ratings - JBL ProFlora Direct Inline CO2 Diffuser for External Filter 12-19mm Membrane
      £14.38
      Free postage
      20 sold
    • Ista Aquarium Co2 Starter Kit, Aquascape Nano Aquarium

      Ista Aquarium Co2 Starter Kit, Aquascape Nano Aquarium

      £14.99
      Free postage
      Only 3 left
      Click & Collect
    • JBL ProFlora PH / CO2 Controller Kit and Extras

      JBL ProFlora PH / CO2 Controller Kit and Extras

      £150.00
      Free postage
      or Best Offer
      Click & Collect
    • Ista Aquarium Co2 16g Disposable Cartridge Set

      Ista Aquarium Co2 16g Disposable Cartridge Set

      £15.67
      Was: £16.49
      Free postage
      13 watching
      Click & Collect
    • JBL Disposable CO2 Bottle

      JBL Disposable CO2 Bottle

      £25.19
      £8.00 postage
      Click & Collect
    • CO2 Regulator Aquarium Dual Gauge Display With Bubble Counter And Check Valve UK

      CO2 Regulator Aquarium Dual Gauge Display With Bubble Counter And Check Valve UK

      £20.78
      Was: £22.34
      Free postage
      Click & Collect
    • Jbl Proflora M601

      Jbl Proflora M601

      £100.00
      or Best Offer
      Collection in person
    • SodaStream Cylinder Adapter For CO2 Regulators

      SodaStream Cylinder Adapter For CO2 Regulators

      3 out of 5 stars
      (2)2 product ratings - SodaStream Cylinder Adapter For CO2 Regulators
      £19.99
      Free postage
      731 sold
      Click & Collect
    • Fluval CO2 Pressurised Kits 45/95g & Accessories Planted Tanks Growth Health

      Fluval CO2 Pressurised Kits 45/95g & Accessories Planted Tanks Growth Health

      £3.95 to £44.95
      Free postage
    • Co2 Fish Tank Aquarium PlantSpiral Diffuser Atomizer With Bubble Counter - UK

      Co2 Fish Tank Aquarium PlantSpiral Diffuser Atomizer With Bubble Counter - UK

      £10.99
      or Best Offer
      FAST & FREE
      Only 3 left
      Click & Collect
    • JBL ProFlora Bio80 eco - co2 System pro flora carbon aquarium fertiliser bio 80

      JBL ProFlora Bio80 eco - co2 System pro flora carbon aquarium fertiliser bio 80

      £13.49
      Free postage
      7 watching
      Click & Collect
    • Dual Gauge CO2 Pressure Regulator Bubble Counter Solenoid Valve Aquarium System

      Dual Gauge CO2 Pressure Regulator Bubble Counter Solenoid Valve Aquarium System

      £50.39
      Free postage
      or Best Offer
      4 watching
    • Aquarium DIY CO2 Generator System Kit CO2 Generator System for Plants UK

      Aquarium DIY CO2 Generator System Kit CO2 Generator System for Plants UK

      £21.85
      Free postage
    • Fluval Plant & Shrimp Stratum Aquarium Substrate

      Fluval Plant & Shrimp Stratum Aquarium Substrate

      4.5 out of 5 stars
      (5)5 product ratings - Fluval Plant & Shrimp Stratum Aquarium Substrate
      £8.29 to £29.29
      £3.95 postage
      70 sold
      Click & Collect
    • Adapter for Disposable CO2 Cylinders

      Adapter for Disposable CO2 Cylinders

      2 out of 5 stars
      (1)1 product ratings - Adapter for Disposable CO2 Cylinders
      £19.99
      Free postage
      98 sold
      Click & Collect
    • 1Pcs Magnetic Solenoid Valve CO2 Aquarium Fish Tank System Regulator Night Time

      1Pcs Magnetic Solenoid Valve CO2 Aquarium Fish Tank System Regulator Night Time

      £16.79
      Free postage
      Click & Collect
    • Co2 gas Bottles. 3kg Full. ideal for Home Brew, Welding or Aquarium use.NG16 3RN

      Co2 gas Bottles. 3kg Full. ideal for Home Brew, Welding or Aquarium use.NG16 3RN

      £80.00
      14 watching
      Collection in person

    Results pagination - page 1

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    10. 10

    Highest-rated products

    See all - Highest-rated products

    Showing slide {CURRENT_SLIDE} of {TOTAL_SLIDES} - Highest-rated products

    • Supa Big 10 Lead Strip Plant Weight 3 Metre Length S131
      Supa Big 10 Lead Strip Plant Weight 3 Metre Length S131
      4.9 out of 5 stars
      (45)Total ratings 45,
      100% agree - Would recommend
      £5.89 New
    • 3 X 3-packs ISTA WATERPLANT Disposable Co2 Can Bottle Live Tank Aquarium Plants
      3 X 3-packs ISTA WATERPLANT Disposable Co2 Can Bottle Live Tank Aquarium Plants
      4.9 out of 5 stars
      (20)Total ratings 20,
      100% agree - Would recommend
      £13.75 New
    • API Leaf Zone 473ml Aquarium Plant Fertiliser Leafzone
      API Leaf Zone 473ml Aquarium Plant Fertiliser Leafzone
      4.9 out of 5 stars
      (19)Total ratings 19,
      100% agree - Would recommend
      £12.72 New
    • Fish Tank Aquarium Co2 Diffuser Check Valve U Shape Glass Tube Suction Cup Kit
      Fish Tank Aquarium Co2 Diffuser Check Valve U Shape Glass Tube Suction Cup Kit
      5 out of 5 stars
      (12)Total ratings 12,
      100% agree - Would recommend
      £4.94 New
    • API Leaf Zone 237ml Aquarium Plant Fertiliser Leafzone Food
      API Leaf Zone 237ml Aquarium Plant Fertiliser Leafzone Food
      4.9 out of 5 stars
      (8)Total ratings 8,
      100% agree - Would recommend
      £9.45 New
    • JBL Kugeln The 7 13 Balls Plant Nutrients
      JBL Kugeln The 7 13 Balls Plant Nutrients
      4.9 out of 5 stars
      (8)Total ratings 8,
      100% agree - Would recommend
      £6.50 New
    • Tetra Active Aquarium Substrate 6 L 6l
      Tetra Active Aquarium Substrate 6 L 6l
      5 out of 5 stars
      (7)Total ratings 7,
      100% agree - Would recommend
      £12.39 New
    • Fluval Stratum Substrate for Plants and Shrimp 2 Kg
      Fluval Stratum Substrate for Plants and Shrimp 2 Kg
      4.9 out of 5 stars
      (7)Total ratings 7,
      100% agree - Would recommend
      £11.59 New

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