Midland Metal Mfg. 32041 3/8 X 1/4 (hose Barb X Mip Elbow), Brass Fittings, Hose Barb, Forged Hose Barb 90 Deg Elbow | Blackhawk Supply
Anderson Metal 757001-0812 Hose Adapter 1/2 Inch Barb 3/4 Inch MPT Brass: Brass Insert Adapters 1/2 Inch or More (719852951759-2)
Carbon Steel Beveled Weld End x Hose Barb – US Hose & Coupling
Amazon.com: Horiznext NPT 1" male thread to 1 inch O.D. barb stainless steel pipe fitting, for connecting 1 inch I.D. air hose tubing, pack of 2 pcs : Industrial & Scientific