Tetra Bio-Bag Cartridges with StayClean - Large

$13.99
  • Ultra-activated carbon cartridges for Bio-Bag Filters (unassembled)
  • Includes Tetra StayClean technology to keep aquarium glass up to 35% cleaner automatically
  • StayClean also provides a water clarifier and pH stabilizer
  • Compatible with Large Tetra Whisper Internal, External, and Power Filters
  • Safe for freshwater or marine aquariums