Gasher brass air fittings, NPT end used to connect NPT pipes, brass is corrosion resistant which can apply to water, gas, oil and fuel as well as air tools.Specification:1. This fitting is made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability.2. High quality and deep threads allow the fittings to bite better, tight threads, not easy to slip.3. Smooth threads will reduce the resistance during installation, saving time and improving efficiency.4. It can also be used with grease, fuels, LP and natural gas, refrigeration, instrumentation and hydraulic systems in low and medium pressure pipe line connections.5. Pipe and tube fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries.6. Tips: For better sealing, we suggest that all fittings must be used with sealing tape.7. These Fittings contain Low Lead and are not allowed by federal law to be installed for potable water use in the USA.When purchasing pipe fittings, consider the application, as this will affect material type, shape, size, and required durability. Fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules (pipe wall thickness).