Vallox > Counter flange Counter flange Model Counter flange FR 180 Counter flange FR 200 Counter flange FR 225 / DFR 200 Counter flange FR 250 Counter flange FR 315 Counter flange Counter flange trim made of galvanized steel sheet for connections. Dimensions and holes comply with the DIN 24155 standard. Category: Helios fans accesories Technical details Product numbers Technical details Product numbers Product depth mm 213 Product width mm 186 Product height mm 213 Product weight 0.5 kg Counter flange FR 180 SKU: 49-1200 Product weight: 0.5 kg