Charlotte Pipe 2-in x 3-in PVC DWV Adapter Coupling in the PVC DWV Pipe & Fittings department at Lowes.com
Uxcell 63mm to 25mm ID PVC Reducer Pipe Fitting Straight Adapter Connector, White 3 Pack - Walmart.com
Charlotte Pipe 2-in x 3/4-in Schedule 40 PVC Reducing Bushing in the PVC Pipe & Fittings department at Lowes.com
Amazon.com: FangKingNo 10pcs 1/2" to 3/4" PVC Reducing Female to Female Threaded Coupling for PVC PIPE Pressure Fittings ,PVC Reducer Female Adapter for PVC PIPE Connector White (1/2 Inch to 3/4 Inch) :
1 1/2" x 3/4" PVC Schedule 40 Reducer Coupling Socket x Socket, 429-210
3" x 2" Schedule 80 9829-338
Cantex 3 in. x 2 in. Reducer Bushing R5140867 - The Home Depot