OptiClimate CO2 Pressure reducing valve with magnetic valve pro

OptiClimate CO2 pressure reducing valve for gas cylinders. This product is of industrial grade quality and has large, easily legible pressure gauges. It is equipped with a high-quality magnetic valve that does not buzz or vibrate. Provided with fine adjustment in increments of 1-30L/min for accurately controlling the climate of  any room, large or small. Cheaper valves often have no fine adjustment and are fixed at 15L/min, creating peaks in CO2 levels. To be connected to a regular 10-12mm hose.