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Internet # 314993862

Model # 62436

Store SKU # 1006984434

400 ml Central Heating Protector F1 Express Can

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Product Details

About This Product

Protector F1 is a market leading inhibitor which protects against corrosion and limescale formation in domestic central Heating systems. Protector F1 is suitable for use with all metals and materials commonly used in Heating systems. For long-term protection ensure concentration levels are maintained and checked annually as part of the boiler or system service. Protector F1 is compatible with all other FERNOX products. One 400 ml can protect an average sized system (130 l or up to 16 single radiators) and is added via a radiator or filling loop. FERNOX Protector F1 Express can be dispensed directly into a radiator air vent or system filling loop using the appropriate special adapters Applied with the product. The whole process takes less than 2-minutes. In a single feed indirect cylinder, e.g. Primatic or similar, potable water chemicals must be used. We recommend untreated or Sludged systems are thoroughly cleaned and flushed in accordance with BS7593 and Benchmark using FERNOX Cleaner F5 Express, before treating with FERNOX Protector F1 Express, as existing debris can damage the installation.


  • Quick and convenient - doses in 30-seconds
  • Add via a radiator adapter or filling loops applied
  • Protects against corrosion and limescale
  • Non-toxic, environmentally friendly formulation suitable for use with all metals and materials, including aluminum
  • Maintains system efficiency and extends boiler life
  • Return Policy

Product Information

Internet # 314993862

Model # 62436

Store SKU # 1006984434

Additional Resources



Dimensions: H 8.25 in, W 4.0 in, D 4.0 in


Product Depth (in.)

4.0 in

Product Height (in.)

8.25 in

Product Size (oz.)


Product Width (in.)

4.0 in




Full cure (hours)


Minimum Temperature (F)

0 F

Pack Size


Product Weight (lb.)

1.25 lb



Warranty / Certifications

Manufacturer Warranty


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