Check the listing for details. Schluter Kerdi-Board Waterproof Shower Bench- Rectangle. Condition: New. Listed at 219.40 USD. Schluter Kerdi-Board Waterproof Shower Bench- Rectangle Schluter-KERDI-BOARD-SB is a lightweight, waterproofed, prefabricated shower bench made of KERDI-BOARD that is designed to integrate with the Schluter-Shower System. Schluter-KERDI-BOARD-SB is a prefabricated shower bench, made of KERDI-BOARD, for use in conjunction with the Schluter-Shower System. KERDI-SHOWER-SB is waterproof and ready for tile, leaving only sealing of joints and corners to complete waterproofing. The bench is available in triangular and rectangular configurations in the following sizes (width x depth x height). Features Designed to integrate with the Schluter-Shower System Lightweight, stable, and load bearing Waterproof and ready to tile Sloped surface to prevent water accumulation Quick and easy to install The triangular bench includes preformed 135° KERDI-KERECK inside corners, as well as right and left KERDI-KERS-B bench corners to simplify waterproofing connections at the wall The rectangular bench includes 2 of each preformed 90° inside and outside KERDI-KERECK corners to simplify waterproofing connections at the wall Size 38” x 11-½” x 20” Manufacturer Part # (MPN) KBSB290970RA Payments Shipping Returns