This rubber weatherseal is used on bottom track (use with high track). Categories: Lift & Slide, Lift & Slide, Lift & Slide, Sliding Door Hardware, Weather Seals & Weatherstripping, Window Hardware Description Description DescriptionPhoto GalleryDescription Part Number: 86 This rubber weatherseal is used on bottom track (use with high track). Photo GalleryLift & Slide Bottom Weatherseal (High Track) Lift & Slide Bottom Weatherseal (High Track)