This rubber weatherseal is used on the top jamb (if needed). Cut to adjust. Categories: Lift & Slide, Lift & Slide, Lift & Slide, Sliding Door Hardware, Weather Seals & Weatherstripping, Window Hardware Description Description DescriptionPhoto GalleryDescription Part Number: 87 This rubber weatherseal is used on the top jamb (if needed). Cut to adjust. Photo GalleryLift & Slide Top Jamb Seal Lift & Slide Top Jamb Seal