Eaton Weatherhead 10503B-102 Male Pipe Fitting, CA360 Brass, 3/16" Hose ID, 1/8" Pipe Size (Pack of 4) Adapts 1/8" NPT male end to 3/16" ID hose Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability For use in low-pressure air, fuel, and oil applications