The VELUX VFA MK35 2066 White Painted Side Hung Window is hinged on the left, inward opening window. Vertical windows can be hung in combination with a sloping window, this will allow you to optimise the natural light, to create a beautiful bright home. The VFA side-hung vertical comes with extra elements, including; tilt-and-turn opening with opening restrictors for enhanced safety. 66 Glazing – Triple glazed. Laminated inner pane. Toughened outer pane. Anti-dew and easy to clean coating to keep windows clean for longer and eliminates the build-up of external condensation. Properties 10-year guarantee on windows and flashings. BBA certified.