Pex Insert Brass Sweat Adapters - B x Hub are high-quality fittings designed for use in potable water distribution and hydronic heating systems. Crafted from either standard or lead-free extruded or forged brass, these brass insert fittings ensure durability and long-term performance. Featuring a barb x hub connection, they provide a secure, leak-free connection for your PEX tubing in both residential and commercial applications. These adapters are ideal for systems requiring reliable, efficient, and easy-to-install connections.