LTWHOME Compatible Bio Sponge Replacement for Cascade 500 GPH Aquarium Canister Filter (Pack of 6)

Pack include: 6pcs.
Custom designed and manufactured for Cascade 500 Model CCF1UL and Cascade Elite canister filter models.
The bio sponge filter optimizes the colonization of beneficial aerobic bacteriass which keeps the water fresh and clean to provide a better quality of living for your fish.
Provide efficient water flow with less clogging for long lasting filtration.
Safe, washable and reusable. Easy to replace.