Andersen 18310 Lower Sash with White Exterior and White Interior with Low-E4 Glass Color:White Interior / White Exterior Andersen DH18510 Combination Storm and

Andersen DH18510 Combination Storm and Screen Unit - White Color

This kit fits a window with a visible glass size (lower sash) of 40-7/16" wide by 27-15/16" high

This sash has an visible glass size that measures 48" wide by 31-9/16" high

This screen measures 31-7/8" wide by 34-27/32" high

Andersen 18310 Lower Sash with White Exterior and White Interior with Low-E4 Glass Color:White Interior / White Exterior Andersen DH18510 Combination Storm andAndersen 18310 Narroline Double Hung Lower Sash White Exterior with White Interior Works with Andersen Narroline Double Hung 1968 to 2012. This sash has a White Exterior with White Interior. This window sash has Low E Glass. Low E4 Glass is a high performing glass that improves energy efficiency over standard dual pane glass. It also adds fade protection and water spot reductions due to it's special coating. This sash features a patented Flexacron