Andersen A-Series top sash double hung window
Sash / Panel / Glass, AA, Black Sash / Pine Unfinished, Dual Pane Low-E4, Argon Fill, Chamfer Glass stop, Stainless Glass /. Top Sash, A Series, Double-Hung. ADH1854, 19 1/4 x 63 1/4, Top Sash, A Series Double-Hung, Traditional (4 1/8″ Bottom Rail), Standard Product Performance.