Finish galvanised steel similar to spiraled ducts. SFV 11 : 11 models from 200 to 2 500 m3/h. SFV 21 : 11 models from 200 to 2 500 m3/h. Supply or extract grille for cylindrical ducts.
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.