The 1-1/4" 300ft O2 Barrier HeatLink® UV Stabilized PEX-a Tubing by Mueller Streamline is designed for optimal performance in plumbing and heating applications. This tubing features a robust oxygen barrier that prevents corrosion and ensures longevity. Made from high-quality PEX-a material, it is UV stabilized for outdoor use, making it ideal for various installations. With a length of 300 feet, it provides ample coverage for extensive projects. The tubing is compliant with industry standards, ensuring reliability and safety in your plumbing systems.