Kerdi-Shower-LT/-LTS is a prefabricated sloped shower tray with integrated Kerdi waterproofing. It is lightweight and made of expanded polystyrene. The shower tray eliminates the need for a mortar bed making installation quick and easy. The Kerdi-Shower-LT/-LTS is designed to integrate with the Schluter-Kerdi-Line and Kerdi-Line-Vario linear drains.. Color Family: Orange. Flooring Product Type: Accessory. Flooring Type: Ceramic,Porcelain,Stone,Tile. Material: Polystyrene. Pack Size: 1. Product Weight (lb.): 6.83 lb. Returnable: 90-Day. Diameter (in.): 0 in. Product Width (in.): 36 in. Flooring Type: Tile. Flooring Type: Ceramic. Flooring Type: Porcelain. Flooring Type: Stone