Extractors/inductive of high quality made in plastico. With volumes of 220 until 700 m3. They are but quiet of the market and but the powerful ones. Apt to connect to they fan to controller. The plants let grow when there is excessive heat, is their way to defend itself of the measured one. The optimal rank of temperature of the air assures a vigorous growth is the one that are between 26 and 28 degrees in the aerial zone and 22 and 23 degrees in the zone to radicular. Also the CO2 rich air incorporation is very important since the plant quickly exhausts the one that it around has to his. Diameter: 125 mm