Dennerle Bio-Line CO2 Bottle

Replacement Dennerle Bio CO2 supply bottle for Dennerle Bio CO2 sets. A supply bottle produces, (depending on temperature,) a CO2 total amount of at least 30g (300.000 bubbles), which will last over 60 days in a 60 litre aquarium and over 30 days in a 120 litre aquarium.