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
For 2 in Hose I.D., Hose Barb x NPT, Barbed Hose Fitting - 3DTW4|HB200SS - Grainger
Sanitary Hose Barb Fittings for brewing beer
Groco SS 90 Degree Pipe-to-Hose - Hooker Electric Reels
90 Degree 3/4" NPT Male To 1" Slip-On Hose Barb - CP Performance
Amazon.com: 2 Pair Hose Swivel Nut Barb, 3/16'' Barb & 5/16'' Barb, Stainless Steel 1/4" MFL Quick Disconnects Fittings for Home Brewing Keg by PERA: Home & Kitchen
Metalwork 304 Stainless Steel Hose Barb Fitting, Reducer/Reducing Union Splicer Mender, 1/2" Barb x 5/8" Barb, 12mm to 16mm Hose ID (Pack of 2): Amazon.com: Industrial & Scientific