Skylux lichtkoepel 120x120 cm KQPV3020 230.2 0400 2800 Roof opening = 900 Roof opening = 900 x 1700 mm is not an everyday chore 0 openable version with clear glass 0700 x 0700 mm: Whether you are looking for a fixed or opening version choose the reliable and high quality skylights from Skylux