Schluter-SHOWERPROFILE-WS is a two part profile designed to separate the floors of shower stalls and keep water from exiting the shower receptacle. The first part of the profile is laid with the tile, and has a groove down its center into which a second, taller piece is inserted. This is the second of two pieces. It has the height to keep all shower runoff within the bounds of the stall, and is constructed from pure aluminum for durability and longevity.