Fernox Protector F1 265ml is a high-performance central heating inhibitor designed to provide long-term protection against internal corrosion and limescale formation in domestic heating systems.
Suitable for all types of boilers, radiators and pipework systems, Fernox Protector F1 is compatible with commonly used heating system materials, including aluminium and mixed-metal systems.
One 265ml bottle treats an average domestic heating system of up to 100 litres, 12 radiators or 190m² of underfloor heating. It can also be conveniently dosed through a Fernox TF1 system filter.
For best results, Fernox recommends thoroughly cleaning and flushing untreated or contaminated systems with a suitable Fernox Cleaner before adding Protector F1. Protector levels should also be checked annually as part of routine system maintenance.