This rubber weatherseal is used on the top guide rail. Use with our Standard Top Guide Rail Categories: Lift & Slide, Weather Seals & Weatherstripping, Sliding Door Hardware, Lift & Slide, Window Hardware, Lift & Slide Description Description DescriptionPhoto GalleryDescription Part Number: 228 This rubber weatherseal is used on the top guide rail. Use with our Standard Top Guide Rail Photo GalleryLift & Slide Top Guide Rail Weatherseal Lift & Slide Top Guide Rail Weatherseal