Construction: Made from high-quality stainless steel, these bars are built to withstand high temperatures and resist rust, long-lasting performance and reliability for your grilling needs. Perfect Fit: Designed specifically for Weber for SPIRIT 300 Series Gas Grills, these forFlavorizer bars seamlessly replace the original part number 7636, compatibility with models such as for SPIRIT E-310 and S-320 from 2013 to 2017.