Filter Fluid+ Protector 500ml

Product Code: 62234

Find stockists

Filter Fluid+ Protector lifts corrosion deposits & contaminants within central heating systems to deliver the debris to an in-line filter.


Developed for use with the Fernox TF1 filter range and in-line system filters. Fernox Filter Fluid+ Protector is specifically formulated to lift corrosion deposits and contaminants within central heating systems to deliver the debris directly to an in-line filter (such as one from the Fernox TF1 Filter range) for fast removal and containment. Importantly, it also provides the long-term protection of domestic central heating systems against internal corrosion and limescale formation.

  • Works with a filter to protect the system against corrosion debris
  • Fernox Protector with dispersant to aid the safe collection of magnetite to a filter
  • Prolongs the life of the boiler, pump & heat exchanger
  • Designed to be left in the system permanently
  • Prevents scale and corrosion formation
  • Innovative, best-in-class formulation
  • Buildcert
  • kiwa
  • kiwa

Application and Dosage

The recommended ‘in use’ concentration of the product is 0.5%. One 500ml bottle will treat an average 130-litre system (up to 16 single radiators). The product can be dosed into the system via the Fernox TF1 filling point, the system filling loop or the radiator using a Fernox Injector and circulate. Fernox Filter Fluid+ Protector liberates system contaminants and delivers them to an in-line filter for removal. Once all the work is complete on the heating system, the final action that we recommend is carried out, is to isolate the filter & empty collected contaminants. Fernox Filter Fluid+ Protector should remain in the system. It is not for use in microbore systems. For heavily sludged systems or new installations, Fernox recommends cleaning and flushing using Fernox Cleaner F3/F5 before treating with Filter Fluid+ Protector/ Protector F1 and installing a filter. The installation of a system or new boiler should comply with all local legislation such as Part L of the Building Regulations For continued protection, it is recommended Fernox Protector levels are checked annually as part of any filter maintenance programme. Filter Fluid+ Protector should only be used when a system filter has been installed.

Physical Properties

Fernox Filter Fluid+ Protector is a blend of corrosion and scale inhibitors and dispersants
Form: Liquid
Colour: Brown
Odour: Aromatic
pH (conc): 8.0
pH (in use): 7.0-8.0
SG: 1.15

Packaging, Handling and Storage

Fernox Filter Fluid+ Protector is supplied in 500ml containers or 400ml aerosol cannister. Fernox Filter Fluid+ Protector is classified as non-hazardous, but as with all chemicals: Keep out of reach of children. Do not mix with other chemicals. Contains 1,2-benzisothiazol-3(2H)-one. May produce an allergic reaction.

How does Fernox Filter Fluid+ Protector work?

Watch how Fernox Filter Fluid+ Protector detects and delivers debris to the award winning TF1 Total Filter.

How does Fernox Filter Fluid+ Protector work?