The ALL-NEW Fluval Bio-CO2 Pro system combines the safety of biological carbon dioxide production with the convenience of pressurized delivery. Offering simplicity and unparalleled performance in an easy to use format, Bio-CO2 delivers reliable and controllable CO2 through the naturally occurring fermentation process. With safe, low-pressure operation, it is the most secure, simple, and environmentally sustainable aquarium CO2 delivery system available.

• For Tanks up to 33 gallons or 125 liters
• Included in kit: Nano bubble Diffuser, 5 feet co2 airline, Stainless Steel Chamber, Inline Check Valve, Activator and Booster solution, Adjustable Bubble Counter.