Tetra Stay Clean Bio-Bag Cartridge - Large - 4 Pk

The latest Bio-Bag from Tetra - the Stay Clean Bio-Bag Cartridge contains a proprietary Stay Clean Tablet inside to help reduce build-up on glass, clarifier your water, and further buffer your aquarium water from pH spikes. Other features include activated carbon and duel-sided filter pads to trap water debris and remove impurities. For best results, it's recommended to change these pads monthly.

Works with:
Whisper Internal Filters 20i, 40i
Whisper External Power Filters PF20, PF30, PF40 & PF60
Whisper IQ Power Filters IQ20, IQ30, IQ45 & IQ60

For best results, it's recommended to change your Whisper Stay Clean Cartridge monthly.