Lexus, flame arrester replacement in Hatzor HaGlilit

Lexus, flame arrester replacement in Hatzor HaGlilit.
It may be required to replace the flame arrester if the previous flame arrester is faulty or is not installed correctly. The flame arrester is initially installed in place of instead of the catalyst. The defective flame arrester is cut out and a new one is welded in its place.