The document discusses and compares various product lines from Fernox including their traditional products, Energy Saver F6, Express Range, and TF1 Installer's Pack. The Energy Saver F6 is a new product that can save up to 1.2% of energy consumption on scaled boilers and 0.8% on unscaled boilers. The Express Range allows quick dosing of central heating systems without dropping pressure. The TF1 Installer's Pack is a complete solution for cleaning and protecting central heating systems at a competitive price.