3/8" Female Flare Swivel x 1/4" Hose Barb - propanegear
Brass Barbed Insert Fittings and Adapters
Amazon.com: Quickun Brass Hose Barb Reducer 1" to 5/8" Barbed Reducer Fitting Reducing Splicer Mender Union Adapter for Air Water Fuel : Industrial & Scientific
LTWFITTING 5/16 in. I.D. Brass Hose Barb Splicer Fittings (10-Pack) HF39130510 - The Home Depot
8-16mm Hose Barb x 1/2 Female Thread 90Degree Elbow Brass Barbed Fitting Coupler Connector Adapter For Fuel Gas Water Copper | Lazada PH
PlumbShop Brass Hose Barb Adapter, 1/4-in MIP x 1/4-in ID | Canadian Tire
Black HDPE Threaded x Hose Barb Adapters | U.S. Plastic Corp.
Barb Connectors in Depth – Design and Function | ISM