Andersen TW34210 (Upper Sash) Terratone Exterior and Natural Pine Interior High Performance LowE4 Glass (1992 to May 2010) Category_Fibrex (2004-2009) Exterior surface has a patented

Exterior surface has a patented Flexacron finish for maximum protection

Andersen TW21056C (Lower Sash) White Exterior and Natural Pine Interior HighPerformane LowE4 Finelight Glass (1992 to May 2010) Works with 400 Series Tilt-Wash Double-Hung Windows manufactured from 1992 to May 24

Andersen 244DH2840 200 Series Double Hung Upper Sash with White Exterior and Natural Pine Interior with Low-E High Performance Glass

Andersen TW2862 (Lower Sash) Sandtone 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

Andersen TW34210 (Upper Sash) Terratone Exterior and Natural Pine Interior High Performance LowE4 Glass (1992 to May 2010) Category_Fibrex (2004-2009) Exterior surface has a patentedAndersen TW34210 (Upper Sash) Terratone 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.