Sentinel X100 Central Heating Scale Inhibitor 1Ltr

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


  • Ensures Optimum Boiler Efficiency
  • Protects Against Pin-Holing
  • Non-Staining, Colourless Formulation
  • Non-Staining, Colourless Formulation
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Safety Data Sheet
€16.95 Incl. 20% VAT
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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 Manufacturer's 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.


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Sentinel X100 Central Heating Scale Inhibitor 1Ltr is rated 4.8 out of 5 by 151.
Rated 5 out of 5 by from Does the job It works, does what it says on the bottle. Good price
Date published: 2016-11-08
Rated 5 out of 5 by from Great product, great price! Used Sentinel products for some time now and always had the desired result - longevity of my boiler and heating system. This time made even better by Screwfix's fantastic price! Allied with superb service (as always) from the great staff in Cirencester. "Well done Screwfix" from one happy customer.
Date published: 2016-10-18
Rated 5 out of 5 by from Tried and trusted Straight forward to use; simply remove the bleed screw and pour in via a funnel. One litre is enough to treat a 100 litre system. Small price to pay to make sure that the long warranty given with the new rads is validated.
Date published: 2016-10-12
Rated 5 out of 5 by from Don't look elsewhere I use this for all my jobs. It has never let me down and I would not use any other product. It costs a bit more than some other brands but honestly worth every penny!
Date published: 2016-10-01
Rated 5 out of 5 by from Prevention is better than cure Put in a system 10 years previous, which had had minimal attention before and since. Used the x 800 for 1 day last week and drained fully, before putting 2litres of x100 in. I suggest put 1-2 litres in annually.
Date published: 2016-09-29
Rated 5 out of 5 by from The best have to say I searched on line to great the best deal and screwfix was the best price and local so easy pick up .
Date published: 2016-09-26
Rated 5 out of 5 by from SENTINEL X100 I have used this product for over 12 years. The condition of Systems is always clean and corrosion free. The offer price at Screwfix is excellent.
Date published: 2016-09-24
Rated 5 out of 5 by from Great inhibitor have now used this on a number of occasions in both my own and families systems, works well and on draining down system once more very little corrosion present. Help keeps the boilers in tip top condition
Date published: 2016-09-09
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