Penn-Plax Cascade Power Aquarium Filters Bio-Sponge 300 (3 Pack / 6 Filters);
Penn-Plax Cascade Power Aquarium Filters Bio-Sponge 300 (3 Pack / 6 Filters)

Replacement Bio Sponge for the Cascade Hang On 300 power filters. Sponge is ideal for growing beneficial bacteria.

Buy Now From Amazon

Replacement Bio Sponge for the Cascade Hang On 300 power filters. Sponge is ideal for growing beneficial bacteria.

Similar Products

Penn Plax Cascade Hang-on Power Filter Replacement Cartridges - Pack of 1 (3 count) - CPF34C3Penn Plax 12-Pack Cascade Filter Replacement Cartridges for 300 Hang-On Power FiltersPenn-Plax Cascade 300 Power Filter Replacement Bio-Sponge 2-PackPenn Plax CPF5C Cascade 300 GPH Hang On Aquarium Filter Cartridges with Activated Carbon; 1 PackCascade Filter Replacement Cartridges for Cascade 100 Hang-on Power Filters, 12-PackPenn Plax Cascade Hang-on Aquarium Filter With Quad Filtration System Cleans Up To 50 Gallon TankPenn Plax Cascade 300 Internal Bio Sponge Filters (3 Pack)Penn Plax Cascade Hang-on Aquarium Filter With Quad Filtration System Cleans Up to 20 Gallon Tank