• Premium Biological and Mechanical filtration
  • Rippled surface pattern offers 30% more area to efficiently trap waste and debris
  • Prevents premature clogging extending life of subsequent filter media
  • Complex foam construction helps maintain even and consistent water flow
  • Ideal surface for growth of beneficial, nitrifying bacteria
  • Custom fit with no gaps to maximize filtration efficiency
  • Convenient 2-pack format
  • Replace every 6 months
  • For use in freshwater and saltwater aquariums