Amazon.com: Joywayus 3/8" to 1/2" Barb Fitting Reducer Hose Barb Splicer Hex Union Brass Fitting Water/Fuel/Air (Pack of 3) : Industrial & Scientific
JEGS 555-110846: -8 AN to Straight 3/8 in. Hose Barb Adapter Fitting | -8 AN Female to 3/8 in. I.D. Hose | Aluminum | Black Anodized Finish | Sold Individually - JEGS High Performance
1" MPT x 1-1/8" Male Hose Barb Adapter | ReplacementBoatParts
Pipe Fitting, Hose Barb Adapter, 1/2 MPT x 1/2-In. Brass | West True Value
Brass 6mm Hose Barb Fitting To 8mm 10mm 19mm Od Raccord Barb Reducer Barbed Adapter Pipe Fittings Gas Copper Coupler Connector - Pneumatic Parts - AliExpress
LTWFITTING 3/8 in. ID Hose Barb x 1/8 in. MIP Lead Free Brass Adapter Fitting (25-Pack) HFLF39186225 - The Home Depot
Brass Barbed Insert Fittings and Adapters
Brass Male Hose Barb Fittings
LTWFITTING 1/4 in. x 3/8 in. I.D. Brass Hose Barb Reducer Splicer Fittings (50-Pack) HF3913R060450 - The Home Depot
JEGS 16002: NPT Straight Hose Barb Fitting | 1/8 in. NPT to 5/16 in. I.D. Hose | Brass | Gold Finish | Set of 2 - JEGS High Performance