iWindow Vast Platdakraam 50x100 cm KKB HHH 0600 0900 This PVC frame with hinges This PVC frame with hinges on short side 0900 x 1200 mm is designed to be installed between the curb and the skylight This PVC frame with hinges on long side 0600 x 1300 mm is designed to be installed between the curb and the skylight maximum light entry Available with HR++ (1