Andersen 24310 Lower Sash with White Exterior and Natural Pine Interior with Dual-Pane 3/8 Glass Unit Number_30611 This sash has an unobstructed

This sash has an unobstructed glass size of 39 inches wide by 31 15/16 inches high

It also adds fade protection and water spot reductions due to it's special coating

This sash has an unobstructed glass size that measures 31-9/16" wide by 31-1/8" high

This sash has a visible glass size of 40 7/16 inches wide by 13 15/16 inches high

This sash has an unobstructed glass size of 15 inches wide by 21 15/16 inches high

Andersen 24310 Lower Sash with White Exterior and Natural Pine Interior with Dual-Pane 3/8 Glass Unit Number_30611 This sash has an unobstructedAndersen 24310 Narroline Double Hung Lower Sash White Exterior with Natural Interior Works with Andersen Narroline Double Hung 1968 to 2012. This sash has a White Exterior with Natural Interior. This window sash has Dual Pane 3 8 Glass. 3 8 dual pane glass offers standard thermal performance with great visibility. This sash features a patented Flexacron finish. This three step process ensures the best protection against weather and scratches.