Penn-Plax Cascade 700/1000 GPH Canister Filter Aquarium Bio Sponge Replacement, 1 Pack
- Keep your water clean and clear with the replacement bio sponge for use in the Cascade 700 Model CCF2UL and Cascade 1000 Model CCF3UL canister filters..
- The bio sponge filter removes ammonia and nitrites from your aquarium tank keeping your aquarium clean, healthy, and odor free..
- Filter sponge optimizes the colonization of beneficial aerobic bacteria which prevents the water from becoming cloudy and harming fish..
- Perfectly cut to fit into the Cascade 700 / 1000 filter tray without any gaps which could allow pollutants to re-enter the water..
- Genuine Penn Plax replacement cartridge for Cascade 700 / 1000 standard and Elite models. When used together, the filter and bio sponge provide maximum protection against water pollutants..