Fluval U3 Underwater Filter - Up to 40 gal.

Fluval U3 Underwater Filter - Up to 40 gal.

Bring powerful 3-stage filtration and circulation to hard-to-filter places like aquariums; terrariums and turtle tanks with the Fluval U Series Underwater Filter. This completely submersible filter features a unique 3-way flow control spray bar that... more

$49.99

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Fluval U Series Underwater Filter Fluval U3

Fluval U Series Underwater Filter Fluval U3

Up to 40% Off Treats!

Fully submersible aquarium filter for enhanced filtration options Boost aquarium filtration, water movement and crucial aeration Underwater filter features flip-top access for easy media change Open your eyes to a world of unsurpassed underwater... more

$49.99

FREE shipping

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(275,000+)
Fluval U Series Underwater Filter U3 Foam Pad (2 pk)

Fluval U Series Underwater Filter U3 Foam Pad (2 pk)

Up to 40% Off Treats!

Create the ideal aquatic herptile habitat with superior filtration, water movement and aeration. The versatile Fluval U Series Underwater Filter offers creative new possibilities in aquatic and semi-aquatic herptile habitats. This fully submersible... more

$2.99

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(275,000+)
Fluval U3 Poly & Carbon Cartridge

Fluval U3 Poly & Carbon Cartridge

Replacement Poly and Carbon Filter Cartridge for Fluval U3 Underwater Filter. more

$5.99

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Fluval U Series Underwater Filter U3 Poly/Carbon (2 pk)

Fluval U Series Underwater Filter U3 Poly/Carbon (2 pk)

Up to 40% Off Treats!

Fully submersible aquarium filter for enhanced filtration options Boost aquarium filtration, water movement and crucial aeration Underwater filter features flip-top access for easy media change Open your eyes to a world of unsurpassed underwater... more

$4.99

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(275,000+)
Fluval U Series Underwater Filter U3 Poly/Carbon (2 pk)

Fluval U Series Underwater Filter U3 Poly/Carbon (2 pk)

Up to 40% Off Treats!

Create the ideal aquatic herptile habitat with superior filtration, water movement and aeration. The versatile Fluval U Series Underwater Filter offers creative new possibilities in aquatic and semi-aquatic herptile habitats. This fully submersible... more

$4.99

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(275,000+)
Fluval U3 Foam Pad

Fluval U3 Foam Pad

Fluval Filter Foam Pads provide mechanical filtration by removing waste and debris from your aquarium water. Designed to fit the Fluval U3 Underwater Filter . For more information on mechanical filtration; please read our article on Aquarium Filter... more

$3.69

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Fluval Underwater Filter Bio-Max

Fluval Underwater Filter Bio-Max

Replacement BioMax tubular ceramic Biological Filter Media for Fluval U series Underwater Filters. Porous tubular ceramic media has extremely high surface area for beneficial bacterial growth. more

$5.89

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Fluval U3 Underwater Filter Foam Pad (2 Pack)

Fluval U3 Underwater Filter Foam Pad (2 Pack)

$6.52

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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 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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(375,000+)
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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Hagen Fluval Fluval Underwater Filter Stage 2 Poly/Carbon Cartridges: U3 Underwater Filter Cartridge

Hagen Fluval Fluval Underwater Filter Stage 2 Poly/Carbon Cartridges: U3 Underwater Filter Cartridge

Hagen Fluval Fluval Underwater Filter Stage 2 Poly/Carbon Cartridges: U3 Underwater Filter Cartridge - 2 Pack #A491 Fluval U Series Filter Poly / Carbon Cartridges have two sides for the most effective filtration. The U Series Cartridges is a polyester... more

$4.38

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Hagen Fluval Fluval Underwater Filter U-Series: U3 - 155 GPH - 7.5 Watts - (24 - 40 Gallons) #A475

Hagen Fluval Fluval Underwater Filter U-Series: U3 - 155 GPH - 7.5 Watts - (24 - 40 Gallons) #A475

Hagen Fluval Fluval Underwater Filter U-Series: U3 - 155 GPH - 7.5 Watts - (24 - 40 Gallons) #A475 Fluval Underwater Filters are powerful 3-stage filtration systems perfect for aquariums and reptile environments. Easy flip top for fast maintenance 3... more

$57.87

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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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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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(375,000+)
Fluval U3 Filter Foam Pad (2 pack)

Fluval U3 Filter Foam Pad (2 pack)

$2.49

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Fluval U3 Filter Poly/Carbon Catridge (2 pack)

Fluval U3 Filter Poly/Carbon Catridge (2 pack)

$5.29

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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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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

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Fluval Underwater Filter U-Series U3 - 155 GPH - 7.5 Watts - (24 - 40 Gallons)

Fluval Underwater Filter U-Series U3 - 155 GPH - 7.5 Watts - (24 - 40 Gallons)

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

$57.82

FREE shipping

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Hagen Fluval Fluval Underwater Filter Stage 2 Poly/Carbon Cartridges U4 Underwater Filter Cartridge - 2 Pack

Hagen Fluval Fluval Underwater Filter Stage 2 Poly/Carbon Cartridges U4 Underwater Filter Cartridge - 2 Pack

Hagen Fluval Fluval Underwater Filter Stage 2 Poly/Carbon Cartridges U4 Underwater Filter Cartridge - 2 Pack more

$12.87

FREE shipping

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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

$9.99 $6.49

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Fluval U Series Underwater Filter U3 Foam Pad (2 pk)

Fluval U Series Underwater Filter U3 Foam Pad (2 pk)

Up to 40% Off Treats!

Fully submersible aquarium filter for enhanced filtration options Boost aquarium filtration, water movement and crucial aeration Underwater filter features flip-top access for easy media change Open your eyes to a world of unsurpassed underwater... more

$2.99

go to store
(275,000+)
Fluval U Series Underwater Filter Fluval U3

Fluval U Series Underwater Filter Fluval U3

Create the ideal aquatic herptile habitat with superior filtration, water movement and aeration. The versatile Fluval U Series Underwater Filter offers creative new possibilities in aquatic and semi-aquatic herptile habitats. This fully submersible... more

$49.99

FREE shipping

go to store
Fluval U Series Underwater Filter Fluval U3

Fluval U Series Underwater Filter Fluval U3

Fully submersible aquarium filter for enhanced filtration options Boost aquarium filtration, water movement and crucial aeration Underwater filter features flip-top access for easy media change Open your eyes to a world of unsurpassed underwater... more

$49.99

FREE shipping

go to store
Fluval U Series Underwater Filter U3 Foam Pad (2 pk)

Fluval U Series Underwater Filter U3 Foam Pad (2 pk)

Create the ideal aquatic herptile habitat with superior filtration, water movement and aeration. The versatile Fluval U Series Underwater Filter offers creative new possibilities in aquatic and semi-aquatic herptile habitats. This fully submersible... more

$2.99

go to store
Fluval U Series Underwater Filter U3 Poly/Carbon (2 pk)

Fluval U Series Underwater Filter U3 Poly/Carbon (2 pk)

Fully submersible aquarium filter for enhanced filtration options Boost aquarium filtration, water movement and crucial aeration Underwater filter features flip-top access for easy media change Open your eyes to a world of unsurpassed underwater... more

$4.99

go to store
Fluval U Series Underwater Filter U3 Poly/Carbon (2 pk)

Fluval U Series Underwater Filter U3 Poly/Carbon (2 pk)

Create the ideal aquatic herptile habitat with superior filtration, water movement and aeration. The versatile Fluval U Series Underwater Filter offers creative new possibilities in aquatic and semi-aquatic herptile habitats. This fully submersible... more

$4.99

go to store
Fluval U Series Underwater Filter U3 Foam Pad (2 pk)

Fluval U Series Underwater Filter U3 Foam Pad (2 pk)

Fully submersible aquarium filter for enhanced filtration options Boost aquarium filtration, water movement and crucial aeration Underwater filter features flip-top access for easy media change Open your eyes to a world of unsurpassed underwater... more

$2.99

go to store
Fluval U Series Underwater Filter Fluval U2

Fluval U Series Underwater Filter Fluval U2

Up to 40% Off Treats!

Fully submersible aquarium filter for enhanced filtration options Boost aquarium filtration, water movement and crucial aeration Underwater filter features flip-top access for easy media change Open your eyes to a world of unsurpassed underwater... more

$39.99

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(275,000+)
Fluval U Series Underwater Filter Fluval U1

Fluval U Series Underwater Filter Fluval U1

Up to 40% Off Treats!

Fully submersible aquarium filter for enhanced filtration options Boost aquarium filtration, water movement and crucial aeration Underwater filter features flip-top access for easy media change Open your eyes to a world of unsurpassed underwater... more

$29.99

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(275,000+)
Fluval U Series Underwater Filter Fluval U4

Fluval U Series Underwater Filter Fluval U4

Up to 40% Off Treats!

Fully submersible aquarium filter for enhanced filtration options Boost aquarium filtration, water movement and crucial aeration Underwater filter features flip-top access for easy media change Open your eyes to a world of unsurpassed underwater... more

$69.99

FREE shipping

go to store
(275,000+)
Fluval U Series Underwater Filter U4 Poly/Carbon (2 pk)

Fluval U Series Underwater Filter U4 Poly/Carbon (2 pk)

Up to 40% Off Treats!

Fully submersible aquarium filter for enhanced filtration options Boost aquarium filtration, water movement and crucial aeration Underwater filter features flip-top access for easy media change Open your eyes to a world of unsurpassed underwater... more

$5.99

go to store
(275,000+)
Fluval U Series Underwater Filter U2 Foam Pad (2 pk)

Fluval U Series Underwater Filter U2 Foam Pad (2 pk)

Up to 40% Off Treats!

Create the ideal aquatic herptile habitat with superior filtration, water movement and aeration. The versatile Fluval U Series Underwater Filter offers creative new possibilities in aquatic and semi-aquatic herptile habitats. This fully submersible... more

$2.99

go to store
(275,000+)
Fluval U Series Underwater Filter Repl BioMAX (170 grams)

Fluval U Series Underwater Filter Repl BioMAX (170 grams)

Up to 40% Off Treats!

Fully submersible aquarium filter for enhanced filtration options Boost aquarium filtration, water movement and crucial aeration Underwater filter features flip-top access for easy media change Open your eyes to a world of unsurpassed underwater... more

$4.99

go to store
(275,000+)
Fluval U Series Underwater Filter U1 Foam Pad (1 pk)

Fluval U Series Underwater Filter U1 Foam Pad (1 pk)

Up to 40% Off Treats!

Create the ideal aquatic herptile habitat with superior filtration, water movement and aeration. The versatile Fluval U Series Underwater Filter offers creative new possibilities in aquatic and semi-aquatic herptile habitats. This fully submersible... more

$1.49

go to store
(275,000+)
Fluval U Series Underwater Filter U2 Poly/Carbon (2 pk)

Fluval U Series Underwater Filter U2 Poly/Carbon (2 pk)

Up to 40% Off Treats!

Create the ideal aquatic herptile habitat with superior filtration, water movement and aeration. The versatile Fluval U Series Underwater Filter offers creative new possibilities in aquatic and semi-aquatic herptile habitats. This fully submersible... more

$3.99

go to store
(275,000+)
Fluval U Series Underwater Filter U2 Foam Pad (2 pk)

Fluval U Series Underwater Filter U2 Foam Pad (2 pk)

Up to 40% Off Treats!

Fully submersible aquarium filter for enhanced filtration options Boost aquarium filtration, water movement and crucial aeration Underwater filter features flip-top access for easy media change Open your eyes to a world of unsurpassed underwater... more

$2.99

go to store
(275,000+)

More information about Fish Supplies

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