About This MATERIAL: Heavy duty forged brass, thicker, threads are deep and accurate, stronger and durable. FUNCTION: 3/8" male x 3/8" male NPT threads equal diameter hex nipple for connecting two female threaded pipes with same diameters. Or Extending the pipe length. Hard-connected, it does not need extra sealing for most situation. FEATURES: Forged brass fittings, corrosion resistance, ductility at high temperatures, and low magnetic permeability. Operating temperatures range from -20 to 121℃ (-65 to 250 ℉). WIDE APPLICATION: Apply to home plumbing pipes, grease, fuels, natural gas, refrigeration, instrumentation, hydraulic and other applications. NOTICE: These fittings are not allowed to be installed for potable water use,NPT thread size does not actual diameter, it is only nominal pipe size. Overview Size : 3/8" MNPT Material : Brass Brand : GASHER Color : Yellow Item Weight : 3.2 ounces Manufacturer : GASHER