Diffuser EHEIM CO2-SET 400l

The product is a CO2 diffuser in which CO2 gas is sprayed into many bubbles. They in turn create a larger contact surface, allowing CO2 to dissolve quickly in the aquarium water. The bubble counter visually controls the dosage, approximately 20 mg. CO2 per liter. This corresponds to about 10 bubbles per minute per 100 liters of water.