Fernco Part # DTC-150 - Fernco 1 In. - ½ In. Flexible Pvc Clamp Reducer Coupling - Pvc Couplings - Home Depot Pro
Amazon.com: Supply Giant 6I53x2 Flexible Pvc Reducing Coupling with Stainless Steel Clamps 2 x 1-1/2 inch Black (pack of 2), 2 x 1-1/2 : Industrial & Scientific