Bomgaars : Fernco 4 IN CI/PL to 3 IN CI/PL Flexible PVC Coupling : Couplings
Fernco 4 in. Plastic DWV Flexible Cap PQC-104 - The Home Depot
Fernco 4-in. Ideal Flexible Neoprene Coupling Fittings for Cast Iron Pipe - Quick and Simple Connection in the PVC Pipe & Fittings department at Lowes.com
Fernco 4 In. x 4 In. Clay to Cast Iron or Plastic Reducing PVC Coupling - Gillman Home Center
Fernco Flexible PVC PlumbQwik Tee - 4-in. Diameter - Ideal for In-Wall or Limited Space Connections - Rustproof Stainless Steel Clamps in the PVC Pipe & Fittings department at Lowes.com
Fernco 4 in. Flexible PVC Shielded Coupling Fittings & Connectors P1056-44RC - The Home Depot