Fernco no hub couplings are designed for connecting cast iron pipes for storm drainage, sanitary, venting & waste disposal applications. They feature a patented, bi-directional corrugation shield that seals pressure on the pipe & gasket for positive sealing and one-piece screw housing with interlocking clamps for quick & secure installation. They have floating eyelet design for allowing the band, clamp & shield to move independently, thereby preventing shield from crimping & leaking fluid. They come with beaded gaskets for providing high sealing pressure on the piping & holding power. Choose from a broad range of these no hub couplings, available for 1.5, 2, 3, 4 & 6 inch pipe sizes.