Lead-free brass barbed insert x FPT (female pipe thread) plastic nut straight swivel adapter for PEX pipe. Secured to PEX pipe with either stainless steel CinchClamp and Cinch Tool or copper crimp rings and crimp tools (not included). Use nonstick coated tape on threads - Do not use any pipe dope or thread sealing compound. Bagged. Manufactured to include no more than 0.25% weighted average lead content on wetted surfaces.