Plastic PEX fittings are widely used for plumbing due to their flexibility, affordability, and durability. These fittings are designed to meet strict safety standards, ensuring they are safe for residential and commercial use. PEX pipes, including half inch PEX fittings, are resistant to corrosion, scale buildup, and high temperatures, making them a reliable option for modern plumbing systems. Additionally, PEX is non-toxic and has low environmental impact, providing a safer and more eco-friendly alternative to traditional metal pipes. As long as PEX fittings are installed correctly, they offer long-lasting safety and efficiency.