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U3 Filter

Fluval Compatible U3 Foam Pad (6pk)

$12.88

Fluval Compatible U3 Foam Pad (6pk) Foam Pads capture large particles and debris for effective mechanical filtration, the crucial first stage in the filtration process.  The foam pad has a pore size that allows efficient water flow, less clogging...

Fluval Compatible U3 Polyester Pad (6pk)

$12.88

Fluval Compatible U3 Polyester Pad (6pk) The polyester filter pad side filters out fine debris and contaminants. For freshwater, marine or reptile environments. For crystal clear water Replace every 6-8 weeks Easy to replace Works in freshwater,...

Fluval U BioMax 110gm

$13.95 $11.88

Fluval U BioMax 110gm For Fluval® U Series Underwater Filter models U2, U3, U4 Fluval® BIOMAX provides an optimal environment for the colonization and growth of beneficial bacteria. The unique bio rings have a complex pore system that provides...

Fluval U3 - Foam Pad

$9.95 $7.88

Fluval U3 - Foam Pad The Fluval® Foam Pad captures large particles and debris for effective mechanical filtration, the crucial first stage in the filtration process. Custom-sized, it fits perfectly inside the filter chamber to prevent debris bypass...

Fluval U3 Internal Filter

$149.95 $129.00

Fluval U3 Internal Filter Offering outstanding 3-stage filtration, increased water movement and vital aeration, Fluval U-Series internal filters are the perfect solution where external filtration is not possible. Now with new and improved design...