Amazon.com: FangKingNo 10PCS 1/2" 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 (1/2 Inch to 3/4 Inch) :
1" x 3/4" Schedule 40 PVC Reducing Male Adapter, slip x MPT 436-131
1-1/4" x 3/4" PVC Reducer Coupling | U.S. Plastic Corp.
1" x 3/4" Sch 40 PVC Reducer (T.T.) Bushing Mipt x Fipt 439-131
1" x 3/4" Schedule 40 PVC Reducing Coupling, slip x slip 429-131
1 1/2" x 3/4" PVC Schedule 40 Reducer Coupling Socket x Socket, 429-210
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) :
Charlotte Pipe 1 in. x 3/4 in. PVC Schedule 40 Reducer Bushing PVC 02112 2000HD - The Home Depot