OptiClimate CO2 pressure reducing valve for gas cylinders.

This product is of industrial quality and has large, easy-to-read pressure gauges. This product is equipped with a high-quality magnetic valve that does not buzz or vibrate. Features fine adjustment in 1-30L/min increments for precise climate control of any room, large or small. Cheaper valves often have no fine adjustment and are set at 15L / min, this causes spikes in CO2 levels.

Connect to a 10-12mm hose, for example.