1/4 In. NPTM, Auto Plug, 3/8 In.(2)

Automotive Plug has a 3/8 In. Inner Diameter and uses a 1/4 In. Female NPT connection to provide a quick, convenient and reliable method for changing between air tools. For Maximum performance and power we recommend 3/8 In. inner diameter fittings. These fittings provide 100 percent more airflow for more power to the tool. Teflon Tape must be used with all fittings to achieve maximum performance.