Waterway 425-1000 Pvc Adapter 1/2" Spigot X 3/4" Ribbed Barb
Proline Series 3/4-in x 3/4-in Barbed Barb x Garden Hose Adapter Fitting in the Brass Fittings department at Lowes.com
Amazon.com: PVC Barbed Tee Fitting - 3/4 PVC Tee Barb Fitting - 3/4 Inch Barbed Insert Tee x 3/4 FNPT - Hose Barb Fittings for Tubing Hose Water Line - SCH 40
3/4" PVC Male Barbed Insert Adapter 1436-007 (Inst x MPT)
Parker - Barbed Tube Male Connector: Single Barb, 3/4″ Barb, 1/2″ NPT - 50572148 - MSC Industrial Supply