CRAFTSMAN 3/8-in to 1/2-in Standard Socket Adapter in the Socket Adapters department at Lowes.com
3/8" FNPT X 3/8" BSPP Male Brass Adapter (NPT X BSPP)
15mm Quick Release Connector To 3/8 Inch Female Adapter Pressure Washer Coupling Fittings, Durable Brass Tools, Quick Release - Garden Water Connectors - AliExpress
K&M 1/4" to 3/8" Thread Adapter 21770.000.29 B&H Photo Video
1pc 3/8 1/2 Inch Square Drive To 1/4 5/16 3/8 Inch Hex Shank Adapter Wrench Converter Tool Screwdriver Bit Holder Socket Adapter - Screwdriver - AliExpress
CRAFTSMAN 1/2-in to 3/8-in Standard Socket Adapter in the Socket Adapters department at Lowes.com
VFAUOSIT Brass Pipe Fitting, Water Hose Adapter, 3/8 inch Male x 1/2 inch Female water pipe adapter 3/8 to 1/2 pipe adapter Reducer Adapter 2 Pieces - - Amazon.com