VELUX GGL MK12 3066 Pine Centre Pivot Window Triple Glazed - 78cm x 180cm This is a triple glazed window with laminated glazing and has a uValue of 1.0. New generation features More daylight: up to 18% larger pane area. Slim profile: slim profiles and larger pane means more glass and less frame. Thermo technology: innovative use of high performance insulation material. More comfort: a more modern and attractive design with excellent ventilation and operation control. Control bar: new design of the control bar with functionality icons. Exterior design: improved exterior finish with a softer and more discrete expression. Click-on covers: fewer screws with the new click-on covers. Top cover: slimmer top cover. Lacquered natural pine finish - GGL Ideal for a traditional interior. High quality natural pine. Protective triple coat clear lacquer helps to preserve the timber of the window. - - 66 triple glazing Triple glazed. Laminated inner pane. Toughened outer pane. Anti-dew and easy to clean coating to keep windows clean for longer. Properties  10 year guarantee on windows and flashings. Suitable for roof pitches between 15 and 90. BBA certified.