Andersen fwh3168 panel gasket - gray color works with 400 series frenchwood hinged (in-swing) patio doors manufatured from 1988 to present. This panel gasket fits into a kerf around the edge of the panel and seals the door when closed. The active panel (main door), passive panel and stationary panel use the same gasket weatherstrip. . Use gray color for all door panels. This gasket fits Andersen FWH door panels with a visible glass measurement of 24-7/8" by 63-1/2".