Andersen Double-Hung Upper Sash 18210 W part # 1620683 wood finish
Andersen Double-Hung Upper Sash 18210W part # 1620683 unfinished pine wood interior and white exterior.High performance. Overall width is 19 7/8″ and height is 17″ thicknes 1 1/4″ Please make sure that’s the part you need ,ask questions if you are not sure .Open box,never installed.