FUNCTION - This 1/2" NPT Female Pipe to 1/2" NPT Male fitting is an adapter for connecting pipes with different end sizes. DURABLE - As a solid and sturdy material, brass is perfect for hose systems as it can withstand long periods of wear and tear. THREAD - Because of high quality and deep threads, the fittings can bite better and are not easy to slip. MEDIUM - This pipe fitting can apply to fluid, air, gas, oil and fuel. WARNING - This product can expose you to chemicals including lead(~2.85%), which is not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.