Amazon.com: FangKingNo 10PCS 1" to 3/4" PVC Reducing Nipple Male Thread to Male Thread Coupling for PVC PIPE Pressure Fittings,PVC Male Adapter for PVC PIPE Connector White (1 Inch to 3/4 Inch) :
1-1/4 x 1 in. PVC Schedule 40 Coupling | Ferguson
Fernco 1-1/4-in Schedule 40 PVC Coupling in the PVC Pipe & Fittings department at Lowes.com
Amazon.com: METALLIXITY PVC Duct Reducer, (2-1/2 to 1-1/2 Inch), PVC Pipe Increaser DWV Reducing Coupling - for Water Supplies Build, DIY, Garden Shelf Greenhouse, White : Patio, Lawn & Garden
Keeney 1-1/2-in Plastic Reducer Coupling in the Under Sink Plumbing department at Lowes.com
1-1/4" x 1" PVC Schedule 40 Reducer Coupling
1-1/2" x 1-1/4" Schedule 80 9829-212
NIBCO 4 in. x 3 in. PVC DWV Hub x Hub Reducing Coupling C4801HD43 - The Home Depot
Charlotte Pipe 1 in. x 1-1/4 in. PVC Schedule 40 MPT x S Reducer Male Adapter PVC 02110 0900HD - The Home Depot