Andersen G44 400 Series Gliding Window (Active Sash) in White Unit Number_38210 This sash has an visible

This sash has an visible glass size that measures 36" wide by 12-5/8" high

This grille fits a window sash with a visible glass size of 21 1/2" wide and 22 11/16" high

Seals the space between the upper and lower sash

Andersen TW34210 (Lower 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 G44 400 Series Gliding Window (Active Sash) in White Unit Number_38210 This sash has an visibleAndersen G44 400 Series Gliding Window (Active Sash) in White Works with 400 Series Gliding Windows manufactured from 1991 to Present. White exterior color and natural wood interior. This new High Performance Low E4 glass replaces previous versions of Low E glass. Low E4 glass showed up to 25% in saving on cooling bills and 10% on heating bills over ordinary dual pane glass. This new glass reduces water spots up to 99% Glass will stay cleaner. 20 year