[MEASURMENTS]: The nominal size is 1/2” Male Quick Connect x 1/2” Male NPT. Please note that the nominal size DOES NOT EQUAL actual diameter size. The quick connect end and NPT end are standardized as 1/2” fittings but measure ~3/4” (1.9 cm) OD due to pipe sizing standards. [WIDE RANGE OF USES]: This is made for a diverse range of propane, LPG, or natural gas applications for both high and low pressures. You can use this to connect your Grills, RV’s, Hoses, Heaters, Air Compressors and many other applications. NPT connections require thread sealant tape or paste. [EASY QUICK CONNECT]: Features a 1/2” male quick-connect plug. Quick Connect fittings makes connecting your pipes easy and convenient: Simply pull back the sleeve on your female quick connector, insert the plug, and release—no tools required for connection. [NPT CONNECTION]: The 1/2” male NPT fitting is a tapered-thread for a secure fit. Remember to always apply thread sealant tape or pipe dope to prevent leaks during installation. [MEDICIONES]: El tamaño nominal es 1/2” Macho Quick Connect x 1/2” Macho NPT. Tenga en cuenta que el tamaño nominal NO ES IGUAL al diámetro real. El macho de conexión rápida tiene un diámetro real de 3/4” pulgadas (1,9cm), y el macho NPT tiene un diámetro real de 3/4” pulgadas (1,9cm). Finish your outdoor projects and connect your gas appliances with this brass connector plug! It features a 1/2” Male quick connect fitting on one end and a 1/2” Male NPT on the other. It is designed to be used for natural gas, LP gas, air, or propane. A perfect plug to connect your grills, RVs, Generators, Patio Heaters, and any other appliance to your gas tanks! With a durable construction of 100% solid brass, this plug (when installed correctly) ensures an airtight fit and no leakage, can withstand up to 100 000 BTU of pressure and temperatures as low as -40 Degrees Fahrenheit, and will still be effective even after long and constant use. Certification Consumer Note: It is recommended for the installation to be performed by a qualified person or licensed contractor, plumber, or gas-fitter technician. Use pipe thread sealant between all connectors for proper seal and leak test all connections prior to use as a safety measure. Not intended for Potable Drinking Water Use or Human Consumption Applications