Specifically designed for the Fluval C4 Motor Filter, these two-sided polyester/foam blocks effectively perform the first two stages of mechanical filtration.
In stage 1, the porous foam face catches large particles, then in stage 2, the dense polyester face grabs fine debris.
Main characteristics
Design exclusive to the Fluval C4 motor filter
Blocks effectively performing the first two stages of mechanical filtration
Porous foam face catches large particles
Dense polyester face grabs fine debris
