Andersen 2852 Upper Sash with White Exterior and White Interior with Low-E4 Tempered Glass Color:White Interior / White Exterior This sash has a visible

This sash has a visible glass size of 20 7/16 inches wide by 27 15/16 inches high

This head jamb liner fits on the head jamb (top) of the window

Andersen 2442 Conversion Kit for Narroline Windows - White Exterior / White InteriorThis kit fits an Andersen Narroline window with a visible glass size (lower sash) of 24 7/16 inches wide by 21 15/16 inches high

Andersen TW210410 (Upper Sash) White Exterior and Natural Pine Interior High Performance LowE4 Tempered Glass (1992 to May 2010) Works with 400 Series Tilt-Wash Double-Hung Windows manufactured from 1992 to May 24

High performance glass is Low E coated glass with an argon gas fill and is nearly 1/3 more efficient that dual pane and also greatly reduces ultra violet light that can cause material fading inside your home

Andersen 2852 Upper Sash with White Exterior and White Interior with Low-E4 Tempered Glass Color:White Interior / White Exterior This sash has a visibleAndersen 2852 Narroline Double Hung Upper 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 Tempered 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