10 Pack 3/8" x 1/4" MNPT Pipe Thread Brass Air Hose Barb Fitting For 3/8" Hose 685650071039 | eBay
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
8mm or 5/16" ID Brass Barb Splicer Fitting,Straight Barb Hose Fitting - Gold Tone - 8mm 1pcs - Overstock - 27578751
3/8" x 1/4" MNPT Pipe Thread Brass Air Hose Barb Fitting For 3/8" Hose – compressor-source
Dixon DCP2144B Brass Air Chief Industrial Interchange Quick-Connect Air Hose Fitting, Plug, 1/4" Coupling x 3/8" Hose ID Barbed: Air Hose Coupler: Amazon.com: Industrial & Scientific