Category NameWindowsGlazed / UnglazedGlazedDoor LocationExternalGlazing TypeTriple GlazedWindow TypeTop OpenerERP (Energy Efficiency)NStandards MetUKCAMaterialUPVCHeat Loss U Value1.4 W/m2.KGlass TypeClearDoor MaterialUPVCColourWhiteSupplier Part Number3WHOTG6101040Brand NameCrystal