Product Overview Flame tube 260 mm, Buderus, 63046351 BE/BE-A/BE-RLU, 1.0-1.2, 21 kW The Buderus flame tube is 260 mm long and it is suitable for the following burners: BE/BE-A/BE-RLU, for 1.0-1.2 size 21 KW G /S Manufacturer No.: 63046351