Product Description ------------------- Fernox Protector F1 gives long-term protection of domestic central heating systems against internal corrosion and limescale formation. It prevents corrosion of all metals found in these systems, i.e. ferrous metals, copper and copper alloys and aluminium. It is suitable for all types of boiler, radiators and pipe work systems. Fernox F1 Protector is compatible with all metals and materials commonly used in central heating systems. Note: Date mentioned on the item is production date not expiry date Set Contains: ------------- 1 x F1 500ml Protector