Fernco 1-1/2 In. x 1-1/4 In. Flexible PVC Coupling - Gillman Home Center
Fernco 1056-150/125 Reducing 1-1/2-in. x 1-1/4-in. Flexible PVC Pipe Coupling for Cast Iron and Plastic Plumbing Connections in Black - Hydraulic Couplings - Amazon.com
Fernco - 1-1/2 x 1-1/4″ PVC Flexible Pipe Coupling with Clamp - 82978644 - MSC Industrial Supply