Schluter® KERDI - Sloped Shower Tray - 48" x 48" Center DrainA 48" x 48" pre sloped shower tray with integrated KERDI waterproofing replaces the traditional mortar bed entirely. No floating a sloped mud bed, no curing time, no risk of getting the slope wrong. Set in thin set, install the drain, seal with KERDI BAND, and tile. Pre sloped expanded polystyrene (EPS) core with factory applied KERDI waterproofing on the surface centre drain location, compatible with Schluter KERDI DRAIN 48" x 48" fits standard