. Slim Line 900 x 800 Rectangular Shower Tray Summary A 900 x 800 strong stone cast rectangular shower tray with an acrylic capping. Features. Rectangular Shower Tray 900mm. x. 800mm Height- 45mm +/- 5mm. Weight 24kg Stone Strong Cast with Acrylic Capping Impact Resistant Load Bearing Base Shower Waste NOT Included (see Matching Items).