Schluter® KERDI-DRAIN - Flange KitSchluter KERDI DRAIN is a floor drain specifically designed to allow connections to Schluter KERDI or other load bearing bonded waterproof membranes. The membrane is adhered to the large integrated bonding flange to form a waterproof connection at the top of the drain assembly. KERDI DRAIN consists of a drain casing and fully adjustable grate assembly or covering support to which tile is applied. The grate assembly accommodates a wide range of tile