Everbilt 1/2 in. Copper Pressure Cup x FIP Female Adapter Fitting C603HD12 - The Home Depot
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
Proline Series 3/4-in x 3/4-in Threaded Female Adapter Fitting in the Brass Fittings department at Lowes.com