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

Calcium Automat 3172 For marine aquariums up to 2,000 liters (528 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: 10 liters (2.6...

Comline Calcium Automat For aquariums from 200 to 1,000L (50 to 265&nbsp;USgal.) of salt water Energy consumption: 8W Voltage / frequency: 230V/50Hz (115V/60Hz) Cable length: 2m (78.7 in.) Immersion depth: approx. 60 to 280mm (2.3 to 11.0 in.) Filling volume: 1,200ml (40.5 fl.oz.) Delivery: up to 1.9l/h (0.5 USgal./h)<br...