Fluval C4 Hang On Filter Bio-Screen Filtration Durable nylon tail for easy

Durable nylon tail for easy toss and tug play

The element™ M Reactor allows for excellent efficient reaction with consistent even flow from the bottom of the reactor to the top

Small - 18cm H

and comes with 4 test tubes and a convenient holding tub for easy storage

Fluval C4 Hang On Filter Bio-Screen Filtration Durable nylon tail for easyGenuine replacement Bio Screen Pad is designed for: Fluval C4 Hang on Power Filter (14003) 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 Filters biological trickle chamber. Features: Blocks debris Large biological surface area Micro weave corefor even water flow Includes: 3 x Fluval Bio Screen Filter Pads