Penn-Plax Cascade 170 Bio Sponge 2 Pack

Cascade 170 Internal Aquarium Filter Replacement Bio Sponge - LOT OF 5 FILTERS

11-PACK! Cascade 170 Internal Filter Replacement Bio Sponge

Penn-Plax Cascade 700/1000 GPH Canister Filter Aquarium Bio Sponge 2 Pack

Penn-Plax Cascade 170 BIO-SPONGE Internal Filter 3 Packs Of 2 (6 Total) New

Cascade 170 Internal Filter Replacement Bio Sponge 2 Sponges

Lot Of 5 Cascade 170 Internal Filter Replacement Bio Sponge

Penn Plax Cascade 700 Canister Filter Replacement Case Part# CCF224