The Everflow PEX Barb x Female NPT Drop-Ear Elbow is an easy to install, low cost solution to connect PEX Tubing. SharkBite PEX Barb fittings are compatible for potable water distribution and hydronic heating applications. These PEX fittings may be used with the stainless steel clamping system or the copper crimp ring system. The PEX lead-free drop ear elbow is designed for use with PEX in potable water and radiant heating systems. The brass drop ear elbow is made of lead-free Performance Brass Construction. It features PEX x female iron pipe connection and wings with holes to allow for securing the elbow to a wall support. It features a unique fitting system for strong, durable connections without the need for torches, glues, solvents or gauges. lead free brass fittings with this PEX tubing, offering out-of-the-wall support system for a complete lead free solution from the inlet to the faucet.