Weber #64866 Valve and Regulator Assembly for Q1000 Series Grills Weber part 64866 Valve and Regulator Assembly for Q1000 Series Grills Fits Weber Model # 51060001 Q1200 Portable Gas Grills. Please visit Weber's website at http://help.weber.com/schematics/#serial-number to ensure you order the correct parts for the specific year of your grill model. Parts can appear to be identical but not fit certain year models. It is best to look up by serial number. The link will also help you find the alpha-numeric serial number.