FangKingNo 10pcs 0.75In male thread to 0.5In female thread Reducer Bushing for PVC Pipe Fittings Male to Female Threaded bulk fittings Adaptor Coupling for connecting pipe White (3/4"×1/2", 10) - Amazon.com
LASCO 3/4-in x 1/2-in Schedule 40 PVC Adapter in the PVC Pipe & Fittings department at Lowes.com
Value Collection - 3/4 x 1/2″ PVC Pipe Reducing Coupling - 51240976 - MSC Industrial Supply
Charlotte Pipe 1 in. x 3/4 in. PVC Schedule 40 S x FPT Reducer Female Adapter PVC 02101 3800HD - The Home Depot
Sprinkler.com - Product: 2 X 1 PVC INS.COUPLER 1429-249
Charlotte Pipe 3/4 in. x 1/2 in. PVC Schedule 40 Reducer Bushing PVC 02112 1600HD - The Home Depot
430-131 - Threaded Reducer Coupling 1" x 3/4" FxF — Sprinkler Supply Store
Coupling, PVC, 1-1/4 x 1 In., Slip x Slip: Swimming Pool Filter Valves: Amazon.com: Tools & Home Improvement
Charlotte Pipe Schedule 40 Reducing Pipe Coupling, Slip x Slip, White, 3/4 x 1/2 In. | Killingworth True Value
1-1/2" x 3/4" PVC Reducing Coupling Insert x Insert 1429-210
Charlotte Pipe 3/4 in. x 1/2 in. PVC Schedule 40 MPT x S Reducer Male Adapter PVC 02110 0600HD - The Home Depot
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) :
Schedule 40 PVC Reducers 4" x 3-1/2"
1 1/2" x 3/4" PVC Schedule 40 Reducer Coupling Socket x Socket, 429-210