Penn Plax Cascade Pro Carb Canister Filter for Aquariums, 8 Total Filters (4 Packs with 2 Filters in Each Pack)

Penn Plax Cascade 700 1000 GPH Floss Pads – Filter Pad Keeps Your Aquarium Clean and Clear – 6 Pack

Penn Plax Cascade 1200/1500 GPH Floss Pads, 6-Pack

Penn Plax Cascade Nylon Filter with Biological Ceramic Rings

Penn Plax Pro-Carb Filter Bags for All Canister Filters – Filled with Activated Carbon for Clean Aquarium Water – 8 Ounces, 2 Pack

Generic Bio Floss and Bio Sponge Value Packs for Cascade 500/700/1000/12000/15000 Canister Filters (#1200/1500 Bio Floss)

Penn Plax Cascade 700/1000 GPH Bio Sponge (4-Pack)

Penn Plax Cascade Pro-Carb Canister Filter for Aquariums, 2-Pack

Penn Plax Cascade 700/1000 GPH Canister Filter Aquarium Bio Sponge Replacement, 1 Pack

Cascade CCF3UL Canister Filter For Large Aquariums and Fish Tanks – Up To 100 Gallons, Filters 265 GPH

Zanyzap Bio Sponge for Penn-Plax Cascade 700/1000 Canister Filter Foam - 10 Pack