Andersen 1852 Lower Sash with Sandtone Exterior and Sandtone Interior with Low-E4 Glass Unit Number_30611 New High-Performance Low-E4 glass replaces

New High-Performance Low-E4 glass replaces previous versions of Low-E glass

This sash has an unobstructed glass size that measures 19-3/4" wide by 36" high

This sash has an unobstructed glass size of 29-1/2" wide by 25-11/16" High

Andersen TW30310 (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 1852 Lower Sash with Sandtone Exterior and Sandtone Interior with Low-E4 Glass Unit Number_30611 New High-Performance Low-E4 glass replacesAndersen 1852 Narroline Double Hung Lower Sash Sandtone Exterior with Sandtone Interior Works with Andersen Narroline Double Hung 1968 to 2012. This sash has a Sandtone Exterior with Sandtone 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