Prefabricated Waterproofing for Shower Corners wedi® Subliner Dry Corners are prefabricated membrane corners designed to waterproof inside and outside 90° corners in tiled shower and wet-area installations. They provide a ready-to-install corner treatment without cutting and forming sheet membrane at these transitions. Subliner Dry and Vapor 85 System Compatibility The corners are designed for use with wedi® Subliner Dry and wedi® Vapor 85 applications. Install with wedi® Sealant 620 or wedi® S-DRY™ SEAL to create waterproof seams throughout the membrane installation. Inside and Outside 90° Corner Options Subliner Dry Corners are available in prefabricated 90° inside and outside configurations. Each corner measures 4-3/4" × 4-3/4" × 2-1/4" and is supplied in a quantity of two.