Fernox 57880 F1 Central Heating System Protector, 1 Pint

Protector F1 is a market-leading inhibitor which prevents corrosion and limescale formation in central heating systems. This high-performance 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 that react with the system’s metal surface to create a protective layer, and cathodic inhibitors combine with hard water salts to form an insoluble layer.