Sentinel X800 Ultimate Cleaner 1Ltr

Product Code: 84921
Sentinel X800 Ultimate Cleaner 1Ltr
Product Code: 84921
1Ltr. A powerful cleaning agent for central heating systems. Specially developed for use with power flushing equipment. Removes iron and calcium-based deposits to restore circulation and system efficiency. Effective hot or cold. No neutralisation procedure is needed.
Download more information
Safety Data Sheet
€22.95 Incl. 20% VAT
Add to Wishlist

Additional Information
Technical Specification
  • Brand : Sentinel
  • Sealant Adhesive Volume : 1 Ltr
  • Product Type : Ultimate Cleaner
  • Volume : 1 Ltr
  • Model No : X800
  • 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

More Items to Consider

More Items to Consider

Loading... Loading...
Sentinel X800 Ultimate Cleaner 1Ltr is rated 4.9 out of 5 by 49.
Rated 5 out of 5 by from Good stuff, will buy everytime My central heating was fixed using this stuff, working 100% with it. I was a bit scared of it so only kept it in for 24 hrs. Drained it from the system . replaced it with Sentinal inhibitor and my heating was back to its poor self. Put some more of the cleaner in and it is 100% working again. It has been running for 2 weeks now. I am getting scared again. I am keen to drain it. I am thinking about it, but tthe system is running so well? a delema!
Date published: 2017-02-17
Rated 5 out of 5 by from X800 Central Heating Cleaner Having used this product in the past and needing to unblock a couple of radiators that wasn't working fully I decided to put some of the X800 cleaner into the system to help clear out the blockages. Its only been in a couple of days but the flow thought the radiators is much better and I'll leave it in the system for a bit longer before I flush and refill it back up.
Date published: 2017-02-02
Rated 4 out of 5 by from Very happy Struggling with yet another heating system sludged up and thought Id give this ago.. Was not disappointed. Added to the system and with 8 hours it was a completely different system. Don't forget after using this to protect your system with inhibitor X100 works well!
Date published: 2017-01-27
Rated 5 out of 5 by from Ultimate cleaner Read reviews on all cleaners & decided to try the X800 and i am not disappointed, Could feel a difference within a couple of hours.
Date published: 2017-01-16
Rated 5 out of 5 by from Worth the extra cost Within 1 hour all the radiators were hot top to bottom. Due to time constraints I had to leave in the system for 22 hours but sensed I could have drained it within a couple of hours. Wont ever go for cheaper options again.
Date published: 2016-11-30
Rated 5 out of 5 by from Did the job Added to a sluggish system which was cleared within 12 hours. Drained and refilled with added inhibitor, now working well.
Date published: 2016-11-21
Rated 5 out of 5 by from sentinel x800 Added to system with blocked heat exchanger left for 24 hours drained and refilled boiler now working perfectly excellent cleaning product
Date published: 2016-06-18
Rated 5 out of 5 by from Grand stuff Put this into system, left for 4 days, drained and flushed. Amazing the gunk that got cleared. Well impressed!
Date published: 2016-05-16
  • y_2017, m_4, d_24, h_7
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_49
  • loc_en_GB, sid_84921, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix-ie