Set of heater tube : include left side heater tube ( lenght 485 mm. ext diam 75 mm int diam 50 mm ), right side heater tube ( lenght 575 mm ext diam 75 mm int 50 mm ), 2 hot air tube ( lenght 165 mm diam 85 mm ), and 2 aerators tube ( lenght 1140 mm diameter 45 mm ), 4 fixing heat tube tais.