EHEIM Co2 230v/50hz Magnetic Valve 6064210

The magnetic valve operates with a 230V alternating current and works best when connected to the aquarium light timer. This allows the magnetic valve to be switched off at the same time as the lights. Up to 50% of CO2 can be saved by switching of the supply at night as photosynthesis only takes place in daylight where plants absorb carbon dioxide a... morend release oxygen. At night or without light, the plants consume oxygen, therefore CO2 fertilisation would not be beneficial.Features:- Maintenance free- Silent operation - Includes non-return valveSpecifications:- Includes 1.5m cable- 230 V/50 Hz, 1,6 W- P max 6 bar- ø 4/6 mm- Waterproof (IP65)