HydroMaxx 1-1/4-in Schedule 40 PVC Male Adapter Connector Conduit Fittings (200-Pack) in the Conduit Fittings department at Lowes.com
1-1/4" x 3/4" Sch 40 PVC Reducer Coupling Soc 429-167
Amazon.com: Fitvell 1-1/4" PVC Pipe Fitting Adapter Connector Union Coupling Schedule 40 (Slip Socket x NPT Female Pipe Thread), Pack of 5 : Industrial & Scientific
Amazon.com: FangKingNo 10pcs 3/4" to 1" PVC Reducing Female to Female Threaded Coupling for PVC PIPE Pressure Fittings ,PVC Reducer Female Adapter for PVC PIPE Connector White (1 Inch to 3/4 Inch) :
Charlotte Pipe 1-1/4 in. PVC Schedule 40 Female S x FPT Adapter PVC021011200HD - The Home Depot