SharkBite 1/2" Barb Brass PEX Test Plug is an easy-to-install and cost-effective solution designed to cap off PEX tubing lines efficiently. This versatile plug is compatible with potable water distribution and hydronic heating systems, making it i for a variety of plumbing applications. It works seamlessly with both stainless steel clamp systems and copper crimp ring systems, which are sold separately. Manufactured to meet industry standards, it holds approvals including ASTM F1807, NSF/ANSI 61, and NSF 372, ensuring reliable and safe performance. Model Number: