Fire row burner Color classification: flange interface and non-flange interface, and used for liquefied fuel and pure gas Fuel type: gas Do not position orders when pure fuel can't be used! ! ! Pay attention! ! ! Before putting an order, please be sure you closely investigate the hearth radiator (size/interface/use of air source). There isn't any universal hearth radiator and can solely be used to exchange the former hearth radiator Roasting LPG NG Gas Stove Parts Flange Interface G1/2&; G3/8&; External Thread Interface 25-Row Fire Row Burner