Andersen 28210 Lower Sash with White Exterior and White Interior with Low-E4 Glass Color / Finish_Forest Green|Sandtone|Terratone|White|White Pre-1980 It also adds fade protection

It also adds fade protection and water spot reductions due to it's special coating

Andersen TW20210 (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 TW3452 (Lower 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

Andersen AR5 Awning Sash with Low-E4 Glass in White Color Works with Perma-Shield Casement Windows manufactured from 1966 to Present

Andersen A2 Awning Sash with Low-E4 Glass in White Color Works with Perma-Shield Casement Windows manufactured from 1966 to Present

Andersen 28210 Lower Sash with White Exterior and White Interior with Low-E4 Glass Color / Finish_Forest Green|Sandtone|Terratone|White|White Pre-1980 It also adds fade protectionAndersen 28210 Narroline Double Hung Lower Sash White Exterior with White Interior Works with Andersen Narroline Double Hung 1968 to 2012. This sash has a White Exterior with White Interior. This window sash has Low E Glass. Low E4 Glass is a high performing glass that improves energy efficiency over standard dual pane glass. It also adds fade protection and water spot reductions due to it's special coating. This sash features a patented Flexacron