Fernco 1-1/2"x1-1/2" Flexible Coupling with 2 Stainless Steel Clamps. It connects cast iron or plastic to cast iron or plastic. It is corrosion-resistant, flexible, lead-free, removable, UV-resistant, underground rated, and suitable for underground use. With a maximum working pressure of 4.3 psi and a maximum working temperature of 120°F, it is ideal for non-potable water and sewage applications. Comes with a 1-year warranty.