Andersen 20310 Upper Sash with White Exterior and Natural Pine Interior with Dual-Pane 5/8 Glass Unit Number_3046 Screen measures 20-5/32" wide by

Screen measures 20-5/32" wide by 20-5/32" high

Andersen TW1862 (Lower Sash) White Exterior and White Interior High Performance LowE4 Tempered Glass (1992 to May 2010) Works with 400 Series Tilt-Wash Double-Hung Windows manufactured from 1992 to May 24

This sash has an unobstructed glass size that measures 16-1/8" wide by 60" high

This unit takes the place of a screen measuring 19-7/8" wide by 46-27-32" high

This sash has an unobstructed glass size of 19 inches wide by 21 15/16 inches high

Andersen 20310 Upper Sash with White Exterior and Natural Pine Interior with Dual-Pane 5/8 Glass Unit Number_3046 Screen measures 20-5/32" wide byAndersen 20310 Narroline Double Hung Upper 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 5 8 Glass. 5 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.