Fernco® Flexible Stock Coupling, 1006 Series, Fitting/Connector Type: Coupling, 4 x 6 in Nominal Size, Concrete x Cast Iron/Plastic, 5.57 in Length, 4.3 psi Tested, PVC, -30 to 140 deg F
Fernco Couplings have earned a reputation for consistent, superior performance, giving you full confidence in their quality and reliability. The dimensional flexibility of Fernco couplings ensures leak-proof pipe seals on virtually any pipe material: plastic, cast iron, asbestos cement, clay, concrete, steel, copper and ductile iron.