Login Register

Fernox F2 Boiler Noise Silencer 400ml

4.4 (17 reviews)
SKU: 260223155436669 EAN: 5014551624214

Compare 2 prices for Fernox F2 Boiler Noise Silencer 400ml — from £22.98 to £24.99 across 2 UK sellers including Screwfix, Toolstation. Save up to £2.01 (8%).

£22.98 5h ago
View

Compare Prices from 2 Sellers

Prices updated 19 Apr 2026
2
Toolstation
£24.99 +£2.01
6h
#2 Toolstation
6h ago
£24.99 +£2.01
View
No specifications available
No features listed
No items listed

Customer Reviews 17

4.4
17 reviews
5 star
12
4 star
3
3 star
0
2 star
0
1 star
2
Easy dosing
5.0
February 9, 2026
Martin2626 Verified Purchase

Added to system via Tower Rail using the larger connector. Quick and simple. Before removing allow pressure to stabalise / bleed before unscrewing to try and avoid leakage etc.

Could do better.
1.0
April 9, 2025
fc10a31e-64a7-5aa5-9e80-d79dafc7bc61 Verified Purchase

Ordered. Friday.notified available Wednesday, after asking where is ,on Monday.

Good, quick but not perfect.
4.0
January 16, 2025
Poohs Verified Purchase

Super easy to get into system using the plastic adapters supplied, and the pressurised can. Noise greatly reduced but not silenced even after 2 doses.

Easy to use and does what its says it does 5 star, no complications at all was simple and easy to administer into boiler with the products accessories
5.0
December 27, 2024
Choppy2502 Verified Purchase

Easy to use absolutely no problem 5 star product .

Fernox F2
5.0
November 11, 2024
Auris Verified Purchase

This stuff works immediately, and takes less than a minute to inject it into a radiator. I bought it at a sale price so all the more impressive. Ordered online and collected a few minutes later. Superb service.

Does what it says
5.0
October 22, 2024
Bryce B Verified Purchase

Does what it says on the can, easy to apply and mess free.

Boiler noise fixed
5.0
October 20, 2024
Baz U Verified Purchase

A great product, thought I might be in for a hefty repair bill, saw this at an amazing price of £10 from Toolstation, applied it through my F1 filter and now no more noise, brilliant.

Competive product
5.0
October 10, 2024
No Public Name Required Verified Purchase

This product was the cheapest in the area. Friendly and helpful staff

It works
4.0
March 1, 2024
Boiler10 Verified Purchase

Takes a few days to work. No more noise. Downside is the price. Other brands available for less but I have no idea if they work.

5.0
August 7, 2022
pg1v2tqkm3r079666oim3grgw Verified Purchase
The adaptor that came with the can of Fernox did not fit the can, I could only use it because I had an old one
1.0
April 2, 2022
Mr McGoogan Verified Purchase

The adaptor that came with the can of Fernox did not fit the can, I could only use it because I had an old one

Silence is F2
5.0
March 12, 2022
Stoneian Verified Purchase

Half drained rad injected can via air vent replaced air valve refilled rad. Circulated system for 10 mins no more hissing as boiler reached temp job done

Fernox F2 boiler silencer
5.0
March 9, 2022
AJBD Verified Purchase

Follow the instructions and it is almost an instant fix

Reducing boiler noise
5.0
November 14, 2021
Roggin Verified Purchase

Easy to inject. Has reduced kettling considerably in an old system.

Fernox F2
5.0
June 25, 2021
Snoopys woodshop Verified Purchase

Bought this silencer last year, but had to drain the system down to fit a new rad last week , it kept the old boiler quiet last year so I can't see why it won't this time. ordered click and collect was ready in one hour.

Boiler Noise reducer
5.0
January 31, 2021
Aurora Grandad Verified Purchase

Product does what it says on tin. Used via filling loop. Toolstation, best price in area on day of purchase.

Pay and pick up
4.0
January 11, 2020
Dave 80 Verified Purchase

I’d payed on line, when I when to pick it up the assistant asked for ID or he said he wouldn’t serve me.
I showed him my debit card put he said I really need to see your driving licence or other means of ID. The web site doesn’t say you need ID?
PS he finally after a bit of hassle served me is this the correct procedure.

200,000+ Products
220+ Trusted Sellers
183,000+ Price Points
72hr Price Updates

Featured Brands

All Brands