Fernco Inc. P1056-66 6-Inch Stock Coupling Go to amazon.com Related posts Top 14 fernco coupling FeatureManufactured in chinaEasy to useHighly durableStock couplingUse to connect any two pipes6.60-Inch x 6.60-Inch x 5.74-Inch DescriptionSeries 1056 designed for cast iron, plastic, copper, steel, or lead to cast iron, plastic, copper, steel, or lead.