Fernox Protector F1 - Protector F1 is a market-leading inhibitor which prevents corrosion and limescale formation in central heating systems. This high-performance Edit Product offers superior protection by uniquely combining three inhibitors of organic particles, which bind to the metal within the heating system to protect from debris alongside anodic inhibitors which react with the systems metal

surface to create a protective layer, and cathodic inhibitors that combine with hard water salts to form an insoluble layer.