LTWFITTING 1/2" PEX x 1/2" FPT Drop Ear Elbow, Brass Crimp PEX Fitting( Pack of 10 ) 1/2" PEX x 1/2" FPT Drop Ear Elbows (PEX x Female Threaded) Made from lead-free brass, complies with 2014 SDWA and is approved for potable water applications.PEX x FPT (Female NPT) drop ear elbows create a 90-degree transition between PEX pipe and threaded pipe.Drop ears allow to secure the fitting against a wooden surface with screws. Commonly used in the installation of showers, shower jets, etc.Compatible with all types and brands of PEX Tubing: Watts; Everhot; Viega; Zurn;