NIBCO 1-1/2 in. PVC DWV Hub x FIPT Female Adapter C4803HD112 - The Home Depot
Brass, 1/2 in x 1/4 in Fitting Pipe Size, Reducing Adapter - 46M452|706120-0804 - Grainger
4pcs/lot 1/4 3/8 1/2 Drive Socket Adapter Converter Reducer Air Impact Socket Wrench Adapter Hand Tools Set - Wrench - AliExpress
3/8 in. & 1/2 in. Professional Impact Universal Joint Adapter Set, 2 Piece
Brass Pipe Fittings, Water Hose Adapter, G 1/2 Female to G 3/8 Male Reducer Adapter, Compression Fitting for Kitchen Bathroom Faucet, Pipe Connector with Rubber Washer,(2 Pack) - - Amazon.com