Fernco® P1002-66 Flexible Repair Coupling for Clay To Cast Iron Or Plastic PipeThe dimensional flexibility of Fernco couplings ensures leak proof seals on virtually any pipe material. All couplings are clearly marked with part number, size, and pipe material that the coupling will connect to. 6" flexible repair coupling with 2 stainless steel clamps Connects clay pipe to plastic or cast iron Tested designs backed by over five decades of proven performance Positive seal against infiltration and exfiltration Leak proof, root proof