Everbilt 3/8 in. Barb x 3/4 in. FHT Brass Adapter Fitting 801629 - The Home Depot
LTWFITTING 1/2 in. ID Hose Barb x 3/8 in. FIP Lead Free Brass Adapter Fitting (5-Pack) HFLF39158605 - The Home Depot
1/2 to 3/8 Reducer, Vfauosit 3/8 to 1/2 RV Faucet Adapter Brass Compression Fitting Faucet Supply Line Adapter for Plumbing Water Hose 2 Pieces - Amazon.com
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
Stainless Steel 3/8" Barb to 1/2" Female NPT — HomeBrewIt.com / Quality Wine and Ale Supply
Threading Adapter, NPT 1/2 Male to G 3/8 Female
1/2" Npt To 3/8" Flare Adapter
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 - 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
Brass Hose BSP End Connector Barb Adapter Pipe Air Gas 1/8" 1" 1 /4"3/8 1/2" 3/4" | eBay