3 Piece Socket Adapter Set Increasing 3/8" 1/2" 3/4" Female 1/4" 3/8" 1/2" Male - Walmart.com
Amazon.com: SpringSpray 1-1/2" NST (NH) Female x 3/4" GHT Male Brass Fire Hydrant Adapter with Pin Lug Brass Fire Equipment Brass Hydrant to Garden Hose Adapter : Patio, Lawn & Garden
3/4" x 1/2" Schedule 40 PVC Female Adaptor Socket x FPT, 435-101
Everbilt 1/2 in. x 3/4 in. Copper Pressure Cup x FIP Female Adapter Fitting C603HD1234 - The Home Depot
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" Drive x 3/4" Drive Impact Socket Adapter - AP1624 | Mac Tools
Reducer 3/4" to 1/2" Npt Female Pipe Adapter Coupler Brass Fitting Water Oil Gas | eBay
Parker - Industrial Pipe Adapter: 1/2" Female Thread, 3/4-16 Male Thread, Male Straight Thread O-Ring x Female NPTF - 09107921 - MSC Industrial Supply
SharkBite 1/2-in Push-to-Connect x 3/4-in FNPT Female Adapter in the Push to Connect Fittings department at Lowes.com
TEKTON 3/4-in to 1/4-in; 3/8-in; 1/2-in Standard Socket Adapter in the Socket Adapters department at Lowes.com