Graham Architectural Products has released its GT6700 commercial window system with an available historic profile in casement, projected and fixed configurations. The GT6700 incorporates dual thermal strut technology for thermal efficiency and low U-values. It is AAMA AW rated in all configurations with minimum air leakage, high water resistance and impressive design pressures. The projected window system is available with a slim sightline or an equal sightline fixed option, depending on intended use and preferred aesthetics. The window incorporates a deeper-sloped glazing bevel for a more authentic historic look, and the strut framing allows for an optional dual finish. A euro groove frame design enables accessory attachment and a wide va- riety of multi-locking hardware. True and applied grids are available, as well as optional roto operator or single-lever operator and limit devices.