Built-in Waterproof Shield - Incorporates Schluter-KERDI waterproofing, eliminating the need for traditional mortar bed setups, ensuring a watertight seal beneath your tile surface. Ready to Tile - Designed for immediate tile application, this tray provides a robust, dependable foundation, reducing prep work and facilitating a faster installation. Flexible Design Options - Available in twelve distinct sizes including unique neo angle and off-center drain models, catering to both replacement and new construction needs. Lightweight & Durable - Constructed from lightweight expanded polystyrene, this shower tray is easy to install, designed for lasting use in custom-tiled showers. Long-Term Coverage - Backed by a 10-year limited warranty against manufacturing defects when installed per the Schluter Installation Handbook and Technical Data Sheet, following all guidelines and industry standards in effect at the time. The Schluter KST915BF is a prefabricated sloped shower tray designed for ease and reliability. It is waterproof, ready to tile and features integrated KERDI waterproofing. It is quick and easy to install eliminating the need for a mortar bed. Made of lightweight, expanded polystyrene. Available in thin perimeter heights to simplify construction of curbless showers. Available in twelve sizes available, including a neo angle configuration and off-center drain for tub replacements. Specifically designed to integrate with KERDI-BOARD-SC shower curbs, KERDI, and KERDI-DRAIN. Founded over 40 years ago by a master tile setter, Schluter Systems pioneered innovative tile and bathroom waterproofing solutions, consistently setting industry benchmarks for craftsmanship and durability.