Andersen® 400 Series tilt-wash double-hung windows are engineered to provide outstanding performance and style. Combined with the tilt-to-clean sash, it’s easy to see why it’s our best selling double-hung. Exteriors use three different levels of protection from the elements. On the inside you have the choice of natural pine or low-maintenance white, dark bronze or black* finish. For added style there is a wide range of grille patterns and hardware options.