Schlüter-KERDI-SHOWER-TT is a sloped tray made of compression-resistant polystyrene with pre-adhered Schlüter-KERDI waterproofing. In showers, it creates a sufficient slope to a centre-installed or off-centre point drain. It is designed to accommodate the floor drains Schlüter-KERDI-DRAIN. The sloped tray is installed on a flat, level and load bearing substrate and fitted to a prepared KERDI-DRAIN drain. Where necessary the trays can be cut to size with a utility knife, using the pre-marked cutting grooves on the underside of the tray, taking care to maintain a uniform gradient on all sides.