Horiznext npt 1/2-3/4 male to female thread reducer adapter, stainless steel connector for plumbing,shower hose, sink faucet, tub, air water gas line(2 pcs) - Amazon.com
1/2" 3/4" BSP Female Male Thread Tee Type Reducing Copper Elbow Butt joint Adapter Adapter Coupler Water Pipe Plumbing Fittings - AliExpress
1PCS Brass Garden Hose Tap Connector 1/2 Inch 20mm to 3/4 Inch 25mm Outdoor Threaded Brass Hose Quick Tap Connector Brass Hose Pipe Fittings Water Hose Faucet Adapter - Walmart.com
3/4" x 1/2" Schedule 40 PVC Female Adaptor Socket x FPT, 435-101