Schluter KERDI Prefabricated Sloped Shower Tray, 60 x 60" a waterproof and ready-to-tile solution that eliminates the need for a traditional mortar bed. Made from lightweight expanded polystyrene, this sloped shower tray ensures proper drainage while preventing mold and mildew growth. Its design allows for easy installation and integrates seamlessly with KERDI-DRAIN and KERDI-BOARD-SC shower curbs. Featuring a center drain placement, the tray simplifies the creation of curbless showers and is ready for tile installation. for both residential and commercial applications, this tray provides a durable and waterproof foundation for tiled showers. Model Number: KST 1525