CarbonDoser For a targeted and very precise CO2 supply in freshwater aquariums, or into calcium reactors. Features an electronically controlled valve that produces one CO2 portion / CO2 bubble every 0.1 to 10 seconds. The number of bubbles / portions is adjustable from 10 per second to 1 every 10 seconds and the rate of delivery is constant to +/- 1/1,000th of a second.

Calcium Automat 3171 For marine aquariums up to 1,200 liters (317 USgal.) depending on the coral population. Energy consumption: 17 W (25 W) Voltage / frequency: 230V/50Hz (115V/60Hz) Cable length: 2.2 m (86.6") External operation or in a cabinet (recommended), self-priming. Filling quantity: 1,850 ml (488.7...

CO2 non-return valve