SPECIAL ORDER ITEM. Review Returns Policy before purchase. The Allen Company PEX fittings and accessories collection offers a comprehensive solution for residential and commercial plumbing systems. Engineered for reliability, these components are crafted from high-quality forged brass to ensure long-term performance and structural integrity in various water distribution applications. This versatile range includes adapters, couplings, elbows, tees, and valves designed to facilitate seamless connections between PEX tubing and other piping materials. Whether you are performing a new installation or completing a repair, these professional-grade parts provide the necessary durability to maintain a secure, leak-resistant system.