Andersen TW21042 (Upper Sash) White Exterior and Natural Pine Interior High Performance LowE4 Glass (1992 to May 2010) Color:Pine Interior / White Exterior This sash has an unobstructed

This sash has an unobstructed glass size of 21-1/2" wide by 16-11/16" High

This sash has a visible glass size of 40 7/16 inches wide by 27 15/16 inches high

Andersen TW2642 (Upper Sash) White Exterior and Natural Pine Interior High Performance LowE4 Finelight Glass (1992 to May 2010) Works with 400 Series Tilt-Wash Double-Hung Windows manufactured from 1992 to May 24

Andersen TW210210 (Lower Sash) Sandtone Exterior and Natural Pine Interior High Performance LowE4 Glass (1992 to May 2010) Works with 400 Series Tilt-Wash Double-Hung Windows manufactured from 1992 to May 24

Andersen TW1846 (Lower Sash) White Exterior and Natural Pine 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

Andersen TW21042 (Upper Sash) White Exterior and Natural Pine Interior High Performance LowE4 Glass (1992 to May 2010) Color:Pine Interior / White Exterior This sash has an unobstructedAndersen TW21042 (Upper Sash) White Exterior and Natural Pine Interior High Performance LowE4 Glass (1992 to May 2010) Works with 400 Series Tilt Wash Double Hung Windows manufactured from 1992 to May 24, 2010. This sash has grille grommets in the sash. These plastic grommets are visible on the inside of the sash and can be punched out to accept grilles. This sash uses older style grilles with round end plungers that clip into the grommet holes. This