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Fernox Central Heating Protector F1 500ml

Product Code: 77218

Provides long term protection of domestic central heating systems against internal corrosion, limescale formation and bacterial contamination. Prevents corrosion of all metals. Use on all types of boilers, radiators and pipework systems. Non-toxic.

  • Stops Frequent Venting of Radiators
  • Prevents Bacterial Contamination
  • 10 Year Manufacturer's Guarantee
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Safety Data Sheet (COSHH)


4.8 5 15

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Fernox Central Heating Protector F1 500ml 4.8 5 15 15
Fernox Products We often go back to a system after years of 'benign neglect' to find everything working well and still a high inhibitor value reading. Well worth the slightly extra costs - excellent value right across the range of products. 14 Dec 2014
Good stuff Have previously used the MB-1. Tried this and it seems ok, less space taken up in van due to being concentrated 10 Dec 2014
Quality Inhibitor Have used Fernox products in my central heating systems for the past 20 years and have always been happy with performance. I like the smaller volume required with the F1 product. 10 Nov 2014
I wouldn't use anything else Last year I flushed my system using F3. I then refilled it and used F1. Just recently I needed to change a large radiator for a smaller one in the kitchen. Due to kitchen refurbishment nothing to do with problems with the heating system. On draining the system I was amazed to find that the water coming out of the drain tap was all but clear. So guess what I put back in? I wouldn't use anything else. Also it's guaranteed for 10 years, what more could you want. 20 Sep 2014
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Brand Fernox
Manufacturer Guarantee 10 years
Manufacturing Standards KIWA
Pack Size 1
Sealant Adhesive Volume 500 ml
Total Product Weight 646 kg