SharkBite 3/4" Barb x 3/4" PEX Barb Brass Coupling, 10-Pack is a reliable and cost-effective solution designed for connecting PEX tubing with ease. Made from lead- DZR brass, this coupling ensures durability and safety for potable water distribution and hydronic heating applications. It is compatible with both stainless steel clamp systems and copper crimp ring systems, which are sold separately. The SharkBite PEX Barb fittings meet industry standards with approvals including ASTM F1807, NSF/ANSI 61, and NSF 372, making them a choice for professional and DIY plumbing projects. Model Number: