SPECIAL ORDER ITEM. Review Returns Policy before purchase. The ProPEX lead-free brass copper press fitting adapter collection provides a reliable and efficient solution for connecting PEX piping systems to copper press piping. Engineered for strength and durability, these adapters ensure a secure and leak-resistant connection in both residential and commercial plumbing applications. The lead-free brass construction offers long-term performance and peace of mind for potable water systems. Designed to meet rigorous industry standards, this adapter facilitates seamless transitions between different piping materials, helping to optimize installation speed and system integrity. Whether for new construction or system upgrades, this component delivers the professional-grade quality required for modern water delivery systems.