Our products FURANFLEX® Lining material suitable for depressing or ovepressure (200 Pa) exhausting of flue gases of gas and oil-fired combustion equipment with a temperature of up to 200°C. Classification according to EN 1443: T200 P1 W 2 0. FURANFLEX® RWV Lining material to be used for depressing (40 Pa) operation of flue gases of wood-burning combustion equipment.Classification according to EN 1443: T 450 N1 D 2 G RAINFLEX Lining material for the repair of vertical pipe sections of a gravity rainwater drainage system within a building. VENTILFLEX For general ventilation systems, for air intake and exhaust. EU licence: ETA-21/0300 VENTILFLEX RKV For air intake and exhaust as well as steam and smoke exhaust in kitchen ventilation systems