Eaton Weatherhead 202X3 Brass CA360 Inverted Flare Brass Fitting, Adapter, 1/8" NPT Male x 3/16" Tube OD (Pack of 10) Adapts 3/4" inverted flare male tube nut to 3/4" NPT Male Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability Compression fitting for a tight seal on rigid tubing UL Listed for quality control