Fluval C4 Hang On Filter Bio-Screen

Genuine replacement Bio-Screen Pad is designed for: Fluval C4 Hang on Power Filter Fluval® C4 Bio-Screen Pad provides massive biological surface area for friendly bacteria to colonize, plus it blocks debris and evenly distributes water flow before it drips into the Power Filter’s biological trickle chamber. Features: Blocks debris Large biological surface area Micro weave corefor even water flow Includes: 3 x Fluval Bio Screen Filter Pads