SUNGATOR 4-Pack Brass Pipe Fitting, Reducer Adapter, 1/4" NPT Male Pipe x 1/2" NPT Female Pipe

【NPT THREADS & SIZE】: Thread Size and Diameter are different, thread size only can be measured by thread gauge not regular ruler.

1/4" and 1/2" are thread size not diameter.

For diameter please refer to picture no.2.

American National Pipe Taper (NPT) threads, 1/4" NPT male pipe x 1/2" NPT female pipe, 4-pack PREMIUM MATERIAL: Premium solid brass, high strength, high hardness, more durable than iron and iron galvanized pipe fittings, can withstand up to 100 °C (212 °F) EXCELLENT THREADS: Precisely milled, tight threads, not easy to slip, deeper threads design for better meshing for enhancing fixation, smoother threads for easier and quicker installation FIRM AND DURABLE: Having a longer service life than castings, brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability; meets specifications ASTM B584 and ASME/ANSI B16 for quality assurance MULTI-FUNCTION: Reducing adapter allows for connecting and extending different size air hoses, brass can be used with grease, fuels, LP and natural gas, refrigeration, instrumentation and hydraulic systems in low and medium pressure pipe line connections as well as air tools