Kaskade In The Wetroom - A Watertight, Flush-Fit System Discover the wetroom shower tray that fits flush into the floor! here is a quick sumary of key features. For Mobility applications click here. For more detailed information and a downloadable Kaskade guide, check out out 'How To Install' section here. Note: please ensure that you specify at the point of ordering a Kaskade shower base and trap for 'SOFT FLOOR COVERING APPLICATIONS'.