Andersen 18310 Narroline Double Hung Upper Sash White Exterior with Natural Interior

• Works with Andersen Narroline Double Hung 1968 to 2012.
• This sash has a White Exterior with Natural Interior.
• This window sash has Low-E Finelight Glass.
• Low E4 Glass with Finelight 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 glass has integrated grilles in between the glass.
• This sash features a patented Flexacron finish. This three step process ensures the best protection against weather and scratches.
• Flexacron is a trademark of PPG Industries.
• 20-year limited warranty on the glass and a 10 year limited warranty on the rest of the unit.
• This sash has a visible glass size of 16 7/16 inches wide by 19 15/16 inches high.