SharkBite 3/4" Barb x 3/4" PEX Barb Brass Coupling is crafted from lead- DZR brass, providing a durable and reliable connection solution for PEX tubing. This easy-to-install coupling a cost-effective way to join PEX pipes, making it i for potable water distribution and hydronic heating systems. Compatible with both stainless steel clamp systems and copper crimp ring systems (sold separately), it ensures versatility in various plumbing applications. The SharkBite PEX Barb Coupling meets stringent standards, including ASTM F1807, NSF/ANSI 61, and NSF 372, ing safety and performance. Model Number: