LTWFITTING 1/2 in. FIP x 1/4 in. MIP Brass Pipe Adapter Fitting (5-Pack) HF1028405 - The Home Depot
B&K 3/4-in x 1/2-in Threaded Female Hose x Mip Adapter Fitting in the Brass Fittings department at Lowes.com
M14 Female To 1/2 Inch 1/4 Inch M10*1 Male Pressure Gauge Fittings,m20 Female To 1/2 Inch 1/4 Inch Male Pressure Gauge Adapter - Pipe Fittings - AliExpress
B&K 3/4-in x 1/2-in Threaded Male Adapter Bushing Fitting in the Brass Fittings department at Lowes.com
Reducer 1/2" Female to 1/4" Male Npt Pipe Adapter Male Female Thread Water Oil | eBay
GRAINGER APPROVED Reducing Adapter: Brass, 1/2 in x 1/4 in Fitting Pipe Size, Female NPT x Male NPT - 46M452|706120-0804 - Grainger
LASCO 1-1/2-in x 1-1/4-in Adapter PVC Adapter in the PVC Pipe & Fittings department at Lowes.com