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Pneumatic hose coupling with a 3/8 thread, 1/4 body diameter, and ARO interchangeable compatibility is an essential component for connecting compressed air tools, pumps, and machinery to a variety of pneumatic equipment. Made from durable metal construction, this coupling provides maximum strength and durability while ensuring reliable connections in demanding industrial applications across various industries such as manufacturing, automotive, chemical, mining, construction, and food processing. Its compact size and versatile design make it suitable for use with most pneumatic fittings and systems where high-pressure resistance is required, making it an ideal solution for pneumatic hose fitting applications.