Andersen CW3 Casement Sash with Low-E4 Glass in Sandtone Color Unit Number_244DH3449 This sash has High-Performance Low-E

This sash has High-Performance Low-E glass

Andersen TW3846 (Upper 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 W3 Primed Casement Sash with Dual Pane Glass - Routed on Bottom Rail

This sash has an unobstructed glass size that measures 16-1/8" wide by 48" high

Andersen CW3 Casement Sash with Low-E4 Glass in Sandtone Color Unit Number_244DH3449 This sash has High-Performance Low-EAndersen CW3 Casement Sash High Performance Low E4 Glass Sandtone Color Works with Perma Shield Casement Windows manufactured from 1966 to Present. New High Performance Low E4 glass replaces previous versions of Low E glass. Low E4 glass showed up to 25% in savings on cooling bills and 10% on heating bills over ordinary dual pane glass. Protects interior from UV rays that causes material fading. This new glass reduces water spots up to 99% Glass will