Fernox MB-1 Protector 4Ltr Product Code: 97287

4Ltr. Gives long-term protection of domestic central heating systems against internal corrosion and limescale formation. Prevents corrosion of all metals and is suitable for use on all types of boilers, radiators and pipework systems. Non-toxic.


  • 1 Year Guarantee


Download more information
Safety Data Sheet
Additional Information
Technical Specification
  • Brand : Fernox
  • Sealant Adhesive Volume : 4 Ltr
  • Product Type : Protector
  • Volume : 4 Ltr
  • Model No : MB-1
  • Pack Size : 1
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


Standard delivery: €15

Free delivery on all orders over €70.00

Click here to see information on our delivery charges and times



Hopefully you won't need to return an item, however, if you do, it is our aim to make this as simple as possible. By following the guidance below you can help us to help you when a product is not what you expected, or is faulty. Your statutory rights are not affected by this guidance.


Click here to see information on returns and cancellation

€37.95 Incl. 20% VAT

Add to Wishlist

More Items to Consider

Loading... Loading...
Fernox MB-1 Protector 4Ltr is rated 4.5 out of 5 by 8.
Rated 5 out of 5 by from Easy to order, fast delivery !! I bought some Fernox water treatment Chemicals. Easy to put order, fast delivery. Very good experience buying from you, will for sure order more in the future.
Date published: 2017-10-08
Rated 4 out of 5 by from Fernox MB-1 Expensive for what it is. Very difficult to determine if it does the job. Let you know in 10years time!! Other than price, all my rating are subjective.
Date published: 2013-09-25
Rated 5 out of 5 by from Quality Product Been using Fernox in Heating Systems for 30 years, water drains out clean every time. Cant buy better.
Date published: 2012-11-22
Rated 5 out of 5 by from MB-1 To steal a phrase, "It does exactly what is says on the tin/packet" completely thoroughly and adequately describes this EXCELLENT product. I would recommend this product to everyone.
Date published: 2012-11-20
Rated 4 out of 5 by from Fernox Just used this on a clean and flush for a customer. Hard to say much about the performance but at least the Fernox name offers some peace of mind for me and the customer. And you get a little sticker for the boiler ;)
Date published: 2012-04-24
Rated 4 out of 5 by from fernox mb 1 have used this product for years, it has never let me down, good longterm use product
Date published: 2011-05-17
Rated 5 out of 5 by from good stuff this is a good product and i would allways recomend this brand
Date published: 2009-02-22
Rated 4 out of 5 by from Does what it's supposed to Use this every 12 months to keep my central heating protected. The Pro's I deal with on site recommend this brand over all others.
Date published: 2008-11-01
  • y_2020, m_2, d_17, h_17
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.5
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_8
  • loc_en_GB, sid_97287, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix-ie