Outlet ventilation sewage Viotto, for flexible roof

Roof ventilation, which is designed specifically for Russian conditions! Viotto products are cold-resistant, shockproof and more resistant to fading. It serves to equalize the pressure in the sewer system at the time of draining the water from the bathrooms and baths. Interferes with penetration of unpleasant smells into premises. Suitable for roofing in the following colors: Green color: RAL 6002, 6005, 6020, RR11, RR37 Red color: RAL 3003, 3005 Brown color: RAL 8017, 8019, 8025, RR32, RR35.