Fernco 1-1/2"x1-1/4" Flexible Reducing Coupling with 2 Stainless Steel Clamps. It connects cast iron or plastic to cast iron or plastic. This corrosion-resistant, flexible, lead-free, removable, UV-resistant, underground-rated coupling is suitable for non-potable water and sewage applications. It installs quickly and seals tightly to complete a drain connection. Compatible with cast iron, plastic, copper, steel, and lead piping.