Double Pane Anderson Windows for sale. These were temporarily installed in a new construction home--the home's builder changed and that builder upgraded to triple pane windows for ultimate energy performance. These are double pane, low-e, E-STAR windows. Like new. The nailing flanges suffered during removal, so you may have to rework the nailing flanges. All come with new screens (some screens may have tiny holes needing repair). Most of original protective plastic on the windows remain.