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    Fluval U3 Underwater Filter Foam Pad

    Fluval U3 Underwater Filter Foam Pad

    The Fluval Foam Pad was designed specifically for the U3 filter model to captures large particles and debris for effective mechanical filtration, the crucial first stage in the filtration process. Custom fit to prevent bypass, they have a pore size... more

    $6.64

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    Fluval U3 Underwater Filter Poly/Carbon

    Fluval U3 Underwater Filter Poly/Carbon

    Fluval Poly/Carbon Cartridges features two sides for effective chemical filtration, the crucial second stage in the filtration process. The polyester filter pad side filters out fine debris and contaminants. The carbon side filters out harmful liquid... more

    $6.49

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    Fluval Plastic Body Replacement for Fluval U3 Underwater Aquarium Filter

    Fluval Plastic Body Replacement for Fluval U3 Underwater Aquarium Filter

    This body is replacement for the Fluval U3 underwater filter. Made of plastic. This product weighs 0.446-pound. Measures 10-inch length by 3-1/2-inch height by 3-1/2-inch width. more

    $26.41

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    Fluval Foam Cartridge Frame Replacement for Fluval U3 Underwater Aquarium Filter

    Fluval Foam Cartridge Frame Replacement for Fluval U3 Underwater Aquarium Filter

    This foam cartridge frame is suitable for Fluval U3 underwater aquarium filter. This product weighs 0.068-pound. Measures 9-inch length by 1-inch height by 5-inch width. more

    $9.99

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    Fluval Cover Replacement for Fluval U2/U3 Underwater Aquarium Filters

    Fluval Cover Replacement for Fluval U2/U3 Underwater Aquarium Filters

    This cover is suitable for Fluval U2 and U3 underwater filters. This product weighs 0.1-pound. Measures 2-inch length by 5-inch height by 2-inch width. more

    $18.77

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    Fluval Bracket Replacement for Fluval U2/U3 Underwater Aquarium Filters

    Fluval Bracket Replacement for Fluval U2/U3 Underwater Aquarium Filters

    This filter bracket is suitable for Fluval U2 and U3 underwater filters. This product weighs 0.136-pound. Measures 9-inch length by 3-inch height by 6-inch width. more

    $11.99

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    Fluval Underwater Filter

    Fluval Underwater Filter

    Easily filters debris and has optimal biological filtration Handy 3-way flow control with adjustable output Improves water clarity and removes impurities For use in both fresh and saltwater aquariums Available in a variety of sizes The Fluval... more

    $50.99

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    Fluval WFLUVALA486 U2 Underwater Filter Foam Pad

    Fluval WFLUVALA486 U2 Underwater Filter Foam Pad

    The Fluval Foam Pad was designed specifically for the U2 filter model to captures large particles and debris for effective mechanical filtration, the crucial first stage in the filtration process- Custom fit to prevent bypass, they have a pore size... more

    $6.89

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    Fluval U3 Underwater Filter

    Fluval U3 Underwater Filter

    Fluval Underwater FilterFluval Underwater Filter with three stage filtration is ideal for use in fresh, marine or reptile environments. Stage 1 foam pad removes large particles. Stage 2 poly/carbon cartridge traps fine debris, improves water clarity... more

    $59.99 $45.18

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    petco.com

    (200,000+)
    Fluval U3 Underwater Filter Poly/Carbon

    Fluval U3 Underwater Filter Poly/Carbon

    Fluval U3 Underwater Filter Poly/Carbon Fluval Poly/Carbon Cartridges feature two sides for effective chemical filtration, the crucial second stage in the filtration process. The polyester filter pad side filters out fine debris and contaminants. The... more

    $5.99

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    Fluval U3 Underwater Filter Foam Pad (2 Pack)

    Fluval U3 Underwater Filter Foam Pad (2 Pack)

    $1.53

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    Fluval U3 Underwater Filter

    Fluval U3 Underwater Filter

    Fluval Underwater FilterFluval Underwater Filter with three stage filtration is ideal for use in fresh, marine or reptile environments. Stage 1 foam pad removes large particles. Stage 2 poly/carbon cartridge traps fine debris, improves water clarity... more

    $59.99 $45.18

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    petco.com

    (200,000+)
    Fluval U3 Poly Carbon Underwater Filter Cartridge (2 Pack)

    Fluval U3 Poly Carbon Underwater Filter Cartridge (2 Pack)

    $3.19

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    Fluval U2/U3/U4 Biomax Underwater Filter

    Fluval U2/U3/U4 Biomax Underwater Filter

    This Fluval U2/U3/U4 Biomax Underwater Filter lets you optimize your aquarium's biological balance.Add this Fluval U2/U3/U4 Biomax Underwater Filter to your aquarium for optimum biological balance. The U-series stage 3 filter helps maintain a healthy... more

    $7.79

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    (300,000+)
    Fluval Underwater Filter, Size: U3 - Use in 20 - 40 Gallons - A475

    Fluval Underwater Filter, Size: U3 - Use in 20 - 40 Gallons - A475

    Easily filters debris and has optimal biological filtration. Handy 3-way flow control with adjustable output. Improves water clarity and removes impurities. For use in both fresh and saltwater aquariums. Available in a variety of sizes. The Fluval... more

    $88.99

    FREE shipping

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    Fluval U1 Underwater Filter Foam Pad, Size: Fits Fluval U1 Filter,Fits Fluval U2 Filter,Fits Fluval U3 Filter,Fits Fluval U4 Filter - A485

    Fluval U1 Underwater Filter Foam Pad, Size: Fits Fluval U1 Filter,Fits Fluval U2 Filter,Fits Fluval U3 Filter,Fits Fluval U4 Filter - A485

    Efficient water flow and reduces clogging. Crucial first stage in the filtration process. Custom fit to prevent bypass. For use in both fresh and saltwater aquariums. Choose from the given size options. Catching large particles and debris, the Fluval... more

    $8.99

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    Fluval U2 Underwater Filter Poly/Carbon, Size: Fits Fluval U2 Filter,Fits Fluval U3 Filter,Fits Fluval U4 Filter - A490

    Fluval U2 Underwater Filter Poly/Carbon, Size: Fits Fluval U2 Filter,Fits Fluval U3 Filter,Fits Fluval U4 Filter - A490

    Easily filters out fine debris and contaminants. Efficiently removes impurities. Provides effective chemical filtration. For use in both fresh and saltwater aquariums. Choose from the given model options. Two sides combined! The Fluval U2 Underwater... more

    $10.99

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    Fluval Underwater Filter

    Fluval Underwater Filter

    Fluval U3 Underwater Filter The Fluval U3 Underwater Filter provides 3 stage filtration: Stage 1 foam removes large particles. Stage 2 poly/carbon cartridge traps fine debris, improves water clarity and removes impurities. Stage 3 Biomax provides... more

    $64.99

    FREE shipping

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    Fluval Motor Replacement for Fluval U3 Underwater Aquarium Filter

    Fluval Motor Replacement for Fluval U3 Underwater Aquarium Filter

    Fluval Motor Replacement for Fluval U3 Underwater Aquarium Filter This motor is suitable for U3 underwater aquarium filter. This product weighs 0.67-pound. Measures 9-inch length by 3-1/2-inch height by 7-inch width. more

    $32.99

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    Fluval U3 Underwater Aquarium Filter System

    Fluval U3 Underwater Aquarium Filter System

    $49.99

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    Fluval "U" Internal Aquarium Filters Fluval U3

    Fluval "U" Internal Aquarium Filters Fluval U3

    The Fluval "U" Internal Filters are ideal for use as a permanent filter system, for supplemental filtration, or as a "quick-filter" to polish water. The U1 offers single stage filtration, while the U2/U3/U4 each offer three stage filtration to ensure... more

    $54.99

    FREE shipping

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    PetSolutions

    (25,000+)
    Fluval U3 Underwater Cartridge

    Fluval U3 Underwater Cartridge

    The Fluval Underwater Cartridge traps fine debris to improve water clarity and keep your aquarium looking fresh. The cartridge also removes odors from water.Keep your aquarium looking good and provide your aquatic pets with a clean, comfortable... more

    $6.49

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    (300,000+)
    Fluval U Internal Filter Replacement Media U2/U3/U4 Bio Max

    Fluval U Internal Filter Replacement Media U2/U3/U4 Bio Max

    Foam pads trap large particles, the Poly/Carbon pads filter out fine debris and provide chemical filtration , and the BioMax bio rings create an optimal environment where beneficial bacteria can thrive. more

    $4.99

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    PetSolutions

    (25,000+)
    Fluval U3 Filter Poly/Carbon Catridge (2 pack)

    Fluval U3 Filter Poly/Carbon Catridge (2 pack)

    Fluval Poly/Carbon Cartridges features two sides for effective chemical filtration, the crucial second stage in the filtration process. The polyester filter pad side filters out fine debris and contaminants. The Carbon side filters out harmful liquid... more

    $6.49 $4.99

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    Fluval U Internal Filter Replacement Media U3 Foam Pad

    Fluval U Internal Filter Replacement Media U3 Foam Pad

    Foam pads trap large particles, the Poly/Carbon pads filter out fine debris and provide chemical filtration , and the BioMax bio rings create an optimal environment where beneficial bacteria can thrive. more

    $2.49

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    PetSolutions

    (25,000+)
    Fluval U4 Underwater Filter

    Fluval U4 Underwater Filter

    Fluval Underwater FilterFluval Underwater Filter with three stage filtration is ideal for use in fresh, marine or reptile environments. Stage 1 foam pad removes large particles. Stage 2 poly/carbon cartridge traps fine debris, improves water clarity... more

    $84.99 $64.55

    FREE shipping

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    petco.com

    (200,000+)
    Fluval 2 "Plus" Water Polishing Pad (4 pack)

    Fluval 2 "Plus" Water Polishing Pad (4 pack)

    The Fluval 2 Plus Polyester Filter Pad has been specially developed as a fine filter medium for the Fluval 2 Plus Underwater Filter and is ideally suited to filtering out extremly fine suspended particles and contaminants. more

    $8.44 $6.49

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    Fluval 4 Plus Carbon Pads (4Pack)

    Fluval 4 Plus Carbon Pads (4Pack)

    The Fluval 4 Plus Carbon Filter Pads with highquality impregnated active carbon has been specially developed as a fine filter medium for the Fluval 4 Plus Underwater Filter. It is particularly suited to filtering out harmful liquid substances, dyes,... more

    $15.50 $7.99

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