Andersen 1842 Lower Sash with White Exterior and White Interior with Low-E4 Glass Color:White Interior / White Exterior This sash has new High-Performance

This sash has new High-Performance Low-E4 glass and replaces previous versions of Low-E glass

Andersen TW1842 (Lower Sash) Forest Green 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 38310 Conversion Kit for Narroline Windows - White Exterior & Natural Pine Interior

Andersen TW2852 (Upper 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 1842 Lower Sash with White Exterior and White Interior with Low-E4 Glass Color:White Interior / White Exterior This sash has new High-PerformanceAndersen 1842 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