Fluval U4 Underwater Filter - For Fresh, Marine or Reptile Environments

Filters debris and provides optimal biological filtrationSimple to install and maintainSilent and efficientIdeal supplemental or stand-alone filter, or for installations where external filtration is not possibleComes with 3-way flow control with adjustable output, 2 foam pads, 2 poly/carbon cartridges and 90 grams BioMax Ideal for 34-65 gallon environments Fluval U4 underwater Filter with three stage filtration is ideal for use in fresh, marine or reptile environments. Stage 1 foam removes large particles. In stage 2, the poly/carbon cartridge traps fine debris, improves water clarity and removes impurities. In stage 3, BioMax provides optimal biological filtration efficiency. New sleek design, easy grip water control paddle, redesigned media cartridge, traps more debris. Designed for aquariums up to 30 US Gal (110 L)