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.
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Safety Data Sheet
€23.45 Incl. 20% VAT
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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 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.


Click here to see information on returns and cancellation

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Sentinel X800 Ultimate Cleaner 1Ltr is rated 4.9 out of 5 by 45.
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
Rated 5 out of 5 by from Best boiler cleaner A very good quality cleaner, fast acting - does what it says on the tin
Date published: 2016-02-29
Rated 5 out of 5 by from Brilliant product This stuff has just saved me £100's. When my heating engineer found a blocked pipe in my boiler which would require the boiler to be removed from the wall, I was facing a large repair bill. I've never been a believer in "Liquid Engineering" but for £20 I thought it worth a try. Left it in the system for 5 days then drained and flushed. Boiler working fine now with stable pressure. Now installed Sentinel 100 inhibitor. Delighted!
Date published: 2016-01-13
Rated 5 out of 5 by from Fast, thorough and efficient Used in central heating for 24 hours followed by the x100 inhibitor. Rads now as hot as toast, boiler significantly quieter and heating reaching temperature much quicker. Worth the money!
Date published: 2016-01-08
Rated 5 out of 5 by from Sludge cleaner After rading the reviews, i opted to pay more and go for this brand rather than the cheaper alternative. Only just put it in so a week or two to wait now before i know if totally cleared my sludge.
Date published: 2015-10-19
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