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Sentinel X100 Central Heating Scale Inhibitor 1Ltr Product Code: 79683

General purpose treatment for total protection against scale and corrosion. For use in all types of indirect central heating systems, including those containing aluminium. Non-acidic.


  • 1 Year Guarantee
  • Ensures Optimum Boiler Efficiency
  • Protects against Pin-Holing
  • Non-Staining, Colourless Formulation
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Safety Data Sheet
Additional Information
Technical Specification
  • Brand : Sentinel
  • Sealant Adhesive Volume : 1 Ltr
  • Product Type : Central Heating Scale Inhibitor
  • Volume : 1 Ltr
  • Model No : X100
  • 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

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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.


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Was €17.95

Special Price €16.95

Incl. 20% VAT

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Sentinel X100 Central Heating Scale Inhibitor 1Ltr is rated 4.7 out of 5 by 39.
Rated 5 out of 5 by from Good Value Very good produce on special offer at Screwfix atm
Date published: 2014-09-08
Rated 4 out of 5 by from excellent product Has been recommended by my central heating engineeer over the years. Does the job and is easy to apply to central heating system.
Date published: 2014-08-29
Rated 5 out of 5 by from Quality Product Good Quality product from a respected Manufacturer. Helps to prevent corrosion in central heating systems. Good price at Screwfix, not exactly the best price, but good compared with most retailers. Recommended product.
Date published: 2014-08-08
Rated 4 out of 5 by from sentinal x100 Have used before found it to be good, does what it supposed to do.
Date published: 2014-08-04
Rated 4 out of 5 by from Sentinel X100 Used in the past and using again, always seems to do the job keeps the water clear in my system.
Date published: 2014-07-02
Rated 4 out of 5 by from Good value inhibitor Previously always used Fernox (expensive) but found rather noxious looking scum / crust in the CH feeder tank when I drained the system to change a radiator so decided to try Sentinel X100 - better price than Fernox and seemingly does the same job. Will check the feeder tank again after a few months.
Date published: 2014-06-14
Rated 5 out of 5 by from Sentinel X100 Quality product which protects your boiler & heating system, which has never let me down.
Date published: 2014-05-17
Rated 5 out of 5 by from does exactly what is saids Always use. good price. If you drain down your system make sure you add when you refill
Date published: 2014-05-09
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