Sharkbite,1/2 "PEXA x 1/2" FNPT brass drop ear 90-degree elbow fitting. SharkBite expansion fittings are designed for use with PEX-A pipe and expansion rings. SharkBite expansion fittings are designed for use in potable water distribution systems. Expansion fittings require an expansion tool in ordered to make the connection. Lead-free dezincification resistant brass construction Compatible with PEX-A pipe only Requires PEX expansion tool and expansion rings to make connection Approved for water service lines and burial applications including concrete