Tetra FF Filter Floss for EX 600 EX 700 EX 800

Tetra FF Filter Floss pads are replacement filter media parts for Tetra/Tetratec external canister filters. Easy to replace, they remove fine particles, giving the water a ‘polish’ before it returns to the aquarium. These should be replaced every 4 to 8 weeks to maintain effectiveness. Contains 2 floss pads.