Amazon.com: JoyTube Plastic Hose Barb Fittings 1/2" Barb X 1/2" NPT Male Thread Adapter Connector Pipe Fittings (pack of 6) : Industrial & Scientific
PVC Barb Hose Fittings Connector Adapter 12mm or 15/32" Barbed x 3/4" G Male Pipe 6pcs - Walmart.com
Aluminum M10x1.00 Male to 3/8" Hose Barb Fuel Pump Adapter - Pegasus Auto Racing Supplies
Fitting, PTFE, Straight, Hose Barb to Threaded Adapter, 1/8" NPT(F)×1/4" ID | VWR
Amazon.com: Legines 1/4" NPT Male to 3/8" Barb Fitting, Brass Barbed Adapter Straight Connector 2 pcs : Industrial & Scientific
Plastic Barbed Adapter 1/4" Ribbed Barb x 1/2" MPT
Upchurch Scientific Barbed to Threaded Male Adapter for 1/8 inch ID Soft-Walled Tubing, 1/4-28 Flat-Bottom Male, Tefzel ETFE, Single - P-647 - £4.71 : UVISON.com
IDEX P-664 Connector Barbed to Threaded Male ETFE 10-32 1/8″ ID - SciPro
Amazon.com: Boeray 5pcs Brass Hose Barb Fittings 5/16 Inch Barb to 1/4 Inch Male NPT Thread Air Hose Fitting Adapter : Industrial & Scientific
Brass Straight Adapter - 2" Male Pipe Thread x 2" Barb
6mm Od Hose Barb X M6 Metric Male Thread Brass Barbed Pipe Fitting Coupler Connector Adapter Splicer For Fuel Gas Water - Pipe Fittings - AliExpress