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Would recommend100% agree
Good value100% agree
Good quality100% agree
49 reviews
always fernox f1/f3 and f5
i have tried other makes but this does the job every time also use f5 and f1 in all my boiler installes and fernox tf1 filter. if you run a bottle of f5 and f3 in the system for a day it will shift most of shit in the system then flush out with water then 2 bottles of f1 great stuff.Read full review...
Verified purchase: Yes | Condition: new | Sold by: pcbs4u
Recommended product
Central heating system is more efficient after using fernox f1 and f3. It is definatly worth it
Verified purchase: Yes | Condition: new | Sold by: harrbowtel0
Still good product
The product is very good.
far too expensive!!!
Verified purchase: Yes | Condition: new | Sold by: lisakavanagh842012
boiler still runing quiet
hi drained water out the header tank put the furnox in notice staight away it has stopped the kettling niose from the boiler when switching the boiler
pete
Verified purchase: Yes | Condition: new | Sold by: pcbsforu
Used cleaner used silencer used inhibited A1 products.
Boiler silencer really amazing,the boiler is nearly silent in no time big A1thanks what a product.
Verified purchase: Yes | Condition: pre-owned | Sold by: ukdiy579
Best cleaner i have found
Followed the instructions and it cleaned my system out great
Verified purchase: Yes | Condition: new | Sold by: propergoodshop
Worked well
Left in the system for one week will all Rads turned on. Noticeable improvement following flush out.
Verified purchase: Yes | Condition: new | Sold by: steph283013
Effective
By the sample I took when draining the system after using Fernox it has done a good job.
Verified purchase: Yes | Condition: new | Sold by: pcbs4u
Good delivery good product
Prompt delivery and good product
Verified purchase: Yes | Condition: new | Sold by: ligiane10
Well known brand at great price
Well known brand. got two bottles for less than the price of one.
Verified purchase: Yes | Condition: new | Sold by: helenb3236