Tunze CO2 diffuser, (7074.50)

In the aquarium, the diffuser operates as a “stand-alone” solution with a small submerged pump, which draws in the water and thoroughly mixes it with CO2. Dissolved CO2 only leaves the unit; no carbon dioxide is wasted.
The diffuser is suitable for aquariums up to 1,000 litres (264 USgal.) of fresh water. 230V/50Hz (115V/60Hz), 5 W, cable 2 m (78.7 in.).