Andersen Upper Sash Bulb Check Rail Weatherstrip 42-1/4"

Works with 400 Series Tilt-Wash Double-Hung Windows manufactured from 1992 to Present.

This weatherstrip fits by compression into the check rail of the upper sash and forms a seal between the upper and lower sash. No adhesive required.

Use this weatherstrip to to replace all previous vintages of check rail weathestrip.

This TW38 (42-9/32") weatherstrip is for Andersen's widest Tilt-Wash unit. For smaller windows this weatherstrp will need to cut to length. Use your old weatherstrip as a pattern to cut the correct size.