Schluter KERDI Prefabricated Sloped Shower Tray, 48 x 48" is a lightweight, waterproof, and ready-to-tile shower base designed to simplify installation by eliminating the need for a mortar bed. Made of expanded polystyrene, this tray provides a sloped surface that effectively directs water flow toward the drain, preventing mold and mildew growth. It integrates seamlessly with KERDI-DRAIN, KERDI, and KERDI-BOARD-SC shower curbs, ing a complete waterproofing solution. I for curbless showers, this tray comes in various sizes to suit different shower designs. The package includes one KERDI-SHOWER tray and one KERDI collar for sealing the drain-to-tray connection, ensuring a reliable and efficient installation. Model Number: SLRKST1220BF