CRAFTSMAN 3/8-in to 1/2-in Standard Socket Adapter in the Socket Adapters department at Lowes.com
Threading Adapter, NPT 1/2 Female to G 1/4 Male
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
1/2" Hose ID x 1/4" Hose ID Reducer Barb Mender/Splicer/Joiner/Union Fitting Brass Tubing Hose Adapter/Coupler 2pcs: Amazon.com: Industrial & Scientific
Amazon.co.jp: zigwin R134 a Refrigerant Tank Adapter 1/2" Acme Female Fitting 1/4" SAE Male Fittings , 1pcs : Automotive
Amazon.com: uxcell 1/4 Inch Drive (F) x 1/2 Inch (M) Socket Adapter, Female to Male : Tools & Home Improvement
DEWALT 1/4-in to 1/2-in Socket Adapter in the Socket Adapters department at Lowes.com
NIBCO 1-1/2 x 1-1/4 in. PVC DWV Trap Adapter Fitting C480127HD112114 - The Home Depot
gotonovo Brass Pipe Fitting 1/4 Inch Female Pipe 1/2 Inch Male Reducer Adapter Air Hose Adapter Metal Pipe Adapter 2 Pack : Amazon.in: Home Improvement