Andersen Replacement side jamb weather stripping for primed wood casement and awning windows 
This weather stripping is used on 3 side of the window frame; left, right and top.
The original style has changed. The new style is flatter without the curved end. (See Picture)

Andersen Unit: W6
Length: 6 foot Width: 11/16 inch 
Material: Rigid Vinyl; Plastic 
Color: Gray 
Sold Each - 6 foot Length  
Andersen Framed Side Jamb Weatherstrip can be replaced with generic weatherstrip 845001 

Related Generic Window Parts: 
845001 - 9/16 width Sash and Frame Leaf Weatherstripping - Tan