SHUCO FW 50 + NI or other approved equal Aluminium Window glazed with SAINTGOBAIN - COOLITE ST 120 6(16)6, 28mm double glazed with combination of 16mm outer pane solar control positioned 2 coating safety glass + 16mm air gap + planitherm 6mm low energy coating inner pane glass complete with all necessary SHUCO fittings and accessories deemed for complete installation