Schluter KERDI integrated bonding flange provides a large contact area for a secure connection to the KERDI waterproofing membrane at the top of the assembly. Integrated sloped bonding flange available in ABS, PVC, or stainless steel allows for a secure, topical waterproofing connection ABS and PVC flange have a 2" or 3" outlet Stainless steel flange has a 2" or 3" no-hub outlet or a 2" threaded outlet Drain grate ( Sold Separately ) can be laterally adjusted to fit the layout of the tile grid and leveled to the tiled surface Accommodates wide range of tile thicknesses: 1/4" (6mm) to 1-1/4" (32 mm) Adjustable grate in stainless steel or various finishes of anodized aluminum