Andersen TW2446 (Upper Sash) White Exterior and Natural Pine Interior High Performance LowE4 Sun Glass (1992 to May 2010) Color:Pine Interior / White Exterior This sash has an unobstructed

This sash has an unobstructed glass size of 39 inches wide by 17 15/16 inches high

This sash has an visible glass size that measures 31-1/8" wide by 12-5/8" high

Natural wood interior surface that can be stained or painted

Andersen TW34310 (Lower Sash) White Exterior and White 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 TW3862 (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 TW2446 (Upper Sash) White Exterior and Natural Pine Interior High Performance LowE4 Sun Glass (1992 to May 2010) Color:Pine Interior / White Exterior This sash has an unobstructedAndersen TW2446 (Upper Sash) White Exterior and Natural Pine Interior High Performance LowE4 Sun 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.