DENNERLE CO2 PRESS RED EVO. SPACE The first aquarium pressure reducer with an integrated solenoid valve for night cut-off. Universal device for use with.Dennerle disposable CO2 cartridges (80 g). adapter for Dennerle disposable cylinders.adapter for all reusable CO2 cylinders.High operational safety and reliability. CO2 supply is cut in case of power failure. 9V safety extra-low voltage ensures totally safe operation in the aquarium
