Fluval U3 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.
- Filters debris and provides optimal biological filtration
- Simple to install and maintain
- Silent and efficient
- Ideal supplemental or stand-alone filter, or for installations where external filtration is not possible
- Comes with 3-way flow control with adjustable output, 2 foam pads, 2 poly/carbon cartridges and 65 grams BioMax; Ideal for 20-40 gallon environments