Fluval Betta Diffusion Chamber Pad, Replacement Aquarium Filter Media

Convenient 4-pack of replacement mechanical filter media, Specifically designed for the Betta Premium Aquarium Kit, 2.6 US Gal / 10 L (Item #10498), 2-in-1 water diffuser and polisher, Customized to fit seamlessly within Diffusion Chamber (no water bypass), For best results, replace monthly