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.


  • 1 Year Guarantee
  • Ensures Optimum Boiler Efficiency
  • Protects against Pin-Holing
  • Non-Staining, Colourless Formulation
Download more information
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

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

€17.45 Incl. 20% VAT

Add to Wishlist

Sentinel X100 Central Heating Scale Inhibitor 1Ltr is rated 4.8 out of 5 by 173.
Rated 5 out of 5 by from sentinel 100 Excellent product cheapest at Screwfix. Does exactly what it is intended for
Date published: 2017-04-20
Rated 3 out of 5 by from A Realistic Review I've used this because it seems so popular. But this is a rare product where it seems to me to be virtually impossible to know how good or bad it is. Hence my star rating. So how can so many reviewers say this is a very good product? Or, better or worse than any other inhibitor?
Date published: 2017-04-05
Rated 5 out of 5 by from The best! I only use x100 as it is the best quality and at this price it is the cheapest!
Date published: 2017-04-03
Rated 5 out of 5 by from Market leader Superb quality product from Sentinel - odorless and stainless - couldn't be easier to use - just pour into the system for total peace of mind. Great value as always from Screwfix!
Date published: 2017-03-24
Rated 5 out of 5 by from Quality Inhibitor I've always used this product across a number of properties and never had any issues whatsoever. A brand you can trust.
Date published: 2017-03-02
Rated 4 out of 5 by from inhibitor Good name product, Very good value when compared with other builders merchants and superstores.
Date published: 2017-02-21
Rated 5 out of 5 by from Inhibitor If your looking to save money but still get a quality product that's equal to anything else on the market then this is the one , and if you have a Magna clean , Spiro , Tf1 , or the like just add it via that or pour into the header tank in the roof , job done !!!!
Date published: 2017-02-17
Rated 5 out of 5 by from Does what it says! Great product, good price, fantastic speedy service at Wellingborough branch
Date published: 2017-02-17
  • y_2017, m_7, d_25, h_9
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_173
  • loc_en_GB, sid_79683, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix-ie