Viega's new Zero Lead bronze material still has superior dezincification properties as compared to standard bronze press fittings and will carry the same trusted listings required for potable water use. Viega selects top quality materials such as zero lead bronze, Eco Brass, stainless steel, and durable plastics providing the basis for the very highest standards of quality that Viega is known for. Drop ear PEX Press fire sprinkler elbows make a single connection of ViegaPEX Ultra Black tubing to a standard 1/2" male NPT sprinkler head while the PEX Press angled adapter connects two ViegaPEX tubes at 90