1/4 NPT to 5/16 (8mm) Hose Barb Fitting, Brass - Straight | Pegasus Auto Racing Supplies
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
KF-40 Flange to 5/8" Hose Barb Adapter | LoCo Science
Brass Barbed Insert Fittings and Adapters
Brass Male Hose Barb Fittings
Brass Hose Barb - 3/4" ID Hose Barb x 3/4" Male NPT
Everbilt 5/8 in. Barb x 3/4 in. MHT Brass Adapter Fitting 800039 - The Home Depot
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