Fernox Protector+ Filter Fluid F9 Additive underfloor heating Neutralises acidic system water after

Neutralises acidic system water after using DS40 or other acid cleaners

backed by a lifetime manufacturer's warranty

and operate

and embedded biofilm

Fernox Protector+ Filter Fluid F9 Additive underfloor heating Neutralises acidic system water afterFernox Protector+ Filter Fluid F9 Protector+ Filter Fluid F9 is formulated for use alongside Fernox TF1 filters and other in line system filters. Its inhibitor package includes an active dispersant that lifts corrosion debris, sludge, and scale and carries it directly to the filter for safe capture. While improving filter performance, it also provides full protection against scale buildup and corrosion, helping systems run more efficiently for longer.