- Keep your tank clean and clear with the genuine Penn Plax filter cartridge to fit your Cascade 300 GPH hang-on power filter model CPF5. Sold in 2 Pack.
- The bio sponge filter removes dirt and debri from your aquarium tank keeping your aquarium clean and clear.
- 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 300 Hang On Filter tray without any gaps which could allow pollutants to re-enter the water.
- Keep your tank clean and clear with the genuine Penn Plax filter cartridge to fit your Cascade 300 GPH hang-on power filter model CPF5. Sold in 2 Pack.
- The bio sponge filter removes dirt and debri from your aquarium tank keeping your aquarium clean and clear.
- 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 300 Hang On Filter tray without any gaps which could allow pollutants to re-enter the water.