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
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
Pipe Fitting, Hose Barb Adapter, 1/2 MPT x 1/2-In. Brass | West True Value
Parker 146HBLFSV-4-6 Hose Barb Fitting, Barb to Female Flare, Brass, Barb and Female Flare Swivel Female Flare, 1/4" and 3/8": Garden Hose Parts: Amazon.com: Industrial & Scientific
GRAINGER APPROVED Barbed Hose Fitting: For 3/8 in Hose I.D., Hose Barb x NPT, Male x Male, Hex - 6AFN4|6AFN4 - Grainger
BrassCraft 1/2-in x 3/4-in Barbed Barb x Garden Hose Adapter Fitting in the Brass Fittings department at Lowes.com