Andersen CXW45 Casement Sash with Low-E4 Glass and Grilles in White Color Color:White This screen measures 19-7/8" wide

This screen measures 19-7/8" wide by 54-27/32" high

Andersen 244DH2440 200 Series Double Hung Lower Sash with Sandtone Exterior and Natural Pine Interior with Low-E High Performance Glass

This sash has an visible glass size that measures 19-5/16" wide by 19-3/4" high

Includes nylon shoe

This operator works for units with a visible glass dimension width of 20-1/4" or 22" or 22-3/4"

Andersen CXW45 Casement Sash with Low-E4 Glass and Grilles in White Color Color:White This screen measures 19-7/8" wideAndersen CXW45 Casement Sash High Performance Low E4 Glass and Finelight Grilles White Color Works with Perma Shield Casement Windows manufactured from 1966 to Present. Finelight Grilles grilles between glass with standard rectangular pattern. 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