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
Everbilt 1/2 in. Barb x 3/8 in. MIP Nylon Adapter Fitting 800219
Amazon.com: 3/8" Barbed x 1/2" NPT Male Brass Hose Adapter Fitting 5pcs : Industrial & Scientific
1/2" Hose ID x 3/8" Hose ID Reducer Barb Mender/Splicer/Joiner/Union Fitting Brass Tubing Hose Adapter/Coupler: Industrial Products: Amazon.com: Industrial & Scientific
LTWFITTING 3/8 in. I.D. x 1/2 in. MIP Brass Hose Barb 90° Elbow Fittings (5-Pack) HFLF3204705
GRAINGER APPROVED Garden Hose Adapter: 3/4 in x 3/8 in Fitting Size, Male x Male, Swivel, 1 1/8 in Overall Lg - 20XR03|707478-1206 - Grainger
Masterflex Fitting, PTFE, Straight, Hose Barb to Threaded Adapter, 3/8" ID x 1/2" NPT(M) from Cole-Parmer
Adapter Connector 1/2 In to 3/8 In 9/16 In Kitchen Bathroom Basin Sink Copper Adapter Water Tap Hose Thread Adapter - Walmart.com