HOME-FLEX 3/4 in. CSST x 1/2 in. NPT Brass Reducing Adapter 11-429-101 - The Home Depot
3/4 in x 1/2 in Fitting Size, Male x Male, Garden Hose Adapter - 22FP11|MHT104 - Grainger
SharkBite - Reducing Female Adapters - 1/2" x 3/4"
U.S. Solid 2pcs Brass Pipe Fitting Adapter, Male Pipe x Female Pipe, 1/2" x 1/
ANDERSON METALS - Industrial Pipe Adapter: 3/4-14 Female Thread, 1/2-14 Male Thread, MNPT x FNPT - 55540421 - MSC Industrial Supply
BrassCraft 1/2-in x 3/4-in Threaded Female Hose x Mip Adapter Fitting at Lowes.com
BrassCraft 1/2-in x 3/4-in Threaded Male Hose x Fip Adapter Fitting in the Brass Fittings department at Lowes.com
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
Everbilt 3/4 in. x 1/2 in. Copper Pressure Fitting x Cup Reducer C6002HD3412 - The Home Depot
Everbilt 3/4 in. MHT x 3/4 MIP or 1/2 in. FIP Brass Multi Adapter Fitting 801709 - The Home Depot
Everbilt 3/4 in. MHT x 1/2 in. FIP Brass Adapter Fitting 801729 - The Home Depot
Everbilt 3/4 in. MHT x 3/4 MIP or 1/2 in. FIP Brass Multi Adapter Fitting 801709 - The Home Depot
Everbilt 3/4 in. FHT x 1/4 in. O.D. Compression Brass Adapter Fitting 801789 - The Home Depot
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