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This stuff is great if you have a sealed heating system. It is so easy to apply into the system and very clever that you can get it into the system using the filling loop on the boiler. I was not looking forward to shutting down a radiator and the mess involved. My heating system is now quieter than it was before and hopefully less prone to corrosion for the future. Highly recommended.
Verified purchase: Yes | Condition: New
Easy to use takes 30 seconds to put in I have a filling loop Combi boiler no mess done last life of system subject to checking annually very pleased Fernox is the best product used in past
Verified purchase: Yes | Condition: New
recommended by my heating engineer who said its the best on the market. SO I have injected into system. all ok
Verified purchase: Yes | Condition: New
Quick delivery of this hard to find, easy to use product.
Verified purchase: Yes | Condition: New
The Fernox F1 Express canister is the ideal application method if you don't need to drain the system. Very simple to use.
Verified purchase: Yes | Condition: New
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