Fernco Inc. P3001-150 Proflex Reducing Coupling for Cast Iron, Plastic O, 1.5-Inch, Chrome Shielded couplings are electrometric sleeves with stainless steel shields for use in joining cast-iron, schedule 40 plastic, and steel to copper dwv pipe Made from high quality materials and highly durable Manufactured in United States Reducing coupling Allows you to make transition pipe connections that are resistant to shear forces Creates a rigid long lasting pipe joint Connects 1-1/2-Inch cast iron, plastic or steel to 1-1/2-Inch copper or 1-1/4-Inch plastic