Eheim CO2 SET400 - Reusable System without Bottle with Night Shut-off 230V

The EHEIM CO²Set400 is a complete, reusable CO2 system for planted aquariums, supplied without the CO2 bottle. It includes a night shut-off magnetic valve, so CO2 dosing can stop automatically when the lights go out.

Tap water usually contains very little CO2 by the time it reaches the aquarium. CO2 is the most important nutrient for aquarium plants, alongside light, nitrogen, phosphate and trace elements. Stronger, healthier plants leave algae less chance to grow, and they produce more of the oxygen fish need. When dosed correctly, CO2 also helps regulate the water's pH.

The set comes with: a precision pressure reducer with manometers and a precise dosing valve for reusable systems; a 360° rotating hose connection; a 3 m pressure-resistant CO2 safety hose (Ø 4/6 mm); a CO2 safety diffuser with bubble counter and non-return valve; 5 water test strips for checking your starting water values; and a CO2 long-term test with indicator reagent for continuously monitoring the CO2 level in the tank.

Installation is safe and tool-free. Runs on 230V, made in Germany and backed by a 3 year guarantee.