Fernco Inc. P1056-64 6-Inch by 4-Inch Stock Coupling Go to amazon.com Related posts Top 8 best fernco 3007-33 for 2022 Top 14 fernco coupling FeatureFERNCO flexible coupling 6 inch x 4 inchEasily Fits and this is easy to installMade in United statesStock couplingUse to connect any two pipes6.61-Inch x 4.46-Inch x 5.75-Inch DescriptionFERNCO flexible coupling 6 inch x 4 inch