Many homeowners wonder if plastic PEX fittings can handle hot water. The answer is yes—PEX fittings are designed for both hot and cold water applications. They can withstand temperatures up to 200°F, making them safe for household hot water lines. PEX fittings are also resistant to scale buildup and corrosion, ensuring durability. When installed by professionals, these fittings provide reliable, long-lasting performance. Choosing PEX for your hot water system ensures safe, efficient plumbing with fewer risks of leaks or pressure loss.