Andersen TW21056E (Lower Sash) White Exterior and Natural Pine Interior High Performance LowE4 Finelight Glass (1992 to May 2010) Unit Number_28310 This screen measures 21-3/4" wide

This screen measures 21-3/4" wide by 33-3/8" high

Andersen TW210510 (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 TW3836 (Upper 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

This sash has an unobstructed glass size of 29-1/2" wide by 19-11/16" High

This sash has a visible glass size of 20 7/16 inches wide by 21 15/16 inches high

Andersen TW21056E (Lower Sash) White Exterior and Natural Pine Interior High Performance LowE4 Finelight Glass (1992 to May 2010) Unit Number_28310 This screen measures 21-3/4" wideAndersen TW21056E (LowerSash) 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, 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