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Sentinel X400 Sludge Remover 1 Liter - Picture 1 of 2
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Sentinel X400 System Restorer - 1L

4.6319 product ratings
mitccor58 (41)
100% positive Feedback
Price:
£10.08
£3.44 delivery in 2–3 days
Estimated between Wed, 30 Apr and Thu, 1 May
Returns:
No returns, but backed by the eBay Money Back Guarantee.
Condition:
New
Sentinel X400 Sludge Remover 1 Liter

About this product

Product Identifiers

BrandSentinel
MPNX400
EAN5698292057441, 5016402052740
ModelSentinel X400
eBay Product ID (ePID)2282421409

Product Key Features

Power SourceHydronic (Hot Water)
ColourSilver
TypeStorage Tank Water Heater

Additional Product Features

Heating SystemBoiler

All listings for this product

Buy it now
New
Sentinel X400 System Restorer 1L
item 1 Sentinel X400 System Restorer 1L
£12.34
Sentinel X400 Sludge Remover 1 Liter
item 2 Sentinel X400 Sludge Remover 1 Liter
£10.08
+ £3.44 postage
Sentinel X400 High Performance Central Heating Cleaner 1L
item 3 Sentinel X400 High Performance Central Heating Cleaner 1L
£13.99
Free postage
SENTINEL X400 CENTRAL HEATING SYSTEM RESTORER 1LTR CIRCULATION PROBLEMS SLUDGE
item 4 SENTINEL X400 CENTRAL HEATING SYSTEM RESTORER 1LTR CIRCULATION PROBLEMS SLUDGE
£13.20
+ £3.44 postage
Sentinel X400 Rapid-Dose Sludge remover 300ml Canister X400RD - NEW
item 5 Sentinel X400 Rapid-Dose Sludge remover 300ml Canister X400RD - NEW
£17.47
Free postage
Sentinel X400 System Restorer - 1L
item 6 Sentinel X400 System Restorer - 1L
£15.28
+ £2.94 postage
SENTINEL X400 CENTRAL HEATING SYSTEM RESTORER 1LTR CIRCULATION PROBLEMS SLUDGE
item 7 SENTINEL X400 CENTRAL HEATING SYSTEM RESTORER 1LTR CIRCULATION PROBLEMS SLUDGE
£18.99
Free postage
SENTINEL X400 CENTRAL HEATING SYSTEM RESTORER 1LTR CIRCULATION PROBLEMS SLUDGE
item 8 SENTINEL X400 CENTRAL HEATING SYSTEM RESTORER 1LTR CIRCULATION PROBLEMS SLUDGE
£16.90
+ £3.71 postage
Sentinel X400 High Performance Central Heating Cleaner 1L
item 9 Sentinel X400 High Performance Central Heating Cleaner 1L
£22.34
Free postage
Sentinel X100 X300 X400 X800 Protector Cleaner Sludge Remover Central Heating
item 10 Sentinel X100 X300 X400 X800 Protector Cleaner Sludge Remover Central Heating
£22.34
Free postage
SENTINEL X400 CENTRAL HEATING SYSTEM RESTORER 1LTR CIRCULATION PROBLEMS SLUDGE
item 11 SENTINEL X400 CENTRAL HEATING SYSTEM RESTORER 1LTR CIRCULATION PROBLEMS SLUDGE
£20.47
+ £3.71 postage
Sentinel X400 Sludge Remover 1L
item 12 Sentinel X400 Sludge Remover 1L
£31.11
Free postage
SENTINEL X400 CENTRAL HEATING SYSTEM RESTORER (1 ltr) (4 pack)
item 13 SENTINEL X400 CENTRAL HEATING SYSTEM RESTORER (1 ltr) (4 pack)
£32.96
+ £5.64 postage
SENTINEL X400 SANITIZER LT 1 REMOVES SLUDGE AND ALGAE FOR HEATING SYSTEMS
item 14 SENTINEL X400 SANITIZER LT 1 REMOVES SLUDGE AND ALGAE FOR HEATING SYSTEMS
£53.83
+ £30.54 postage
listings for this product

Ratings and reviews

Learn more
4.6
19 product ratings
  • 14 users rated this 5 out of 5 stars
  • 3 users rated this 4 out of 5 stars
  • 2 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 17 reviews
  • by davejill2508
    03 Jun, 2020Most favourable review

    Sentinel X400

    This cleaner has done a great job on my 30 year old system. I flushed our the system first, added the X400 into the header tank in the loft as it was refilling and left it in for a couple of weeks. I thought the flushing had removed a lot of gunk, but so much more came out after using the X400. I've now flushed it again and added inhibitor, the whole system is quieter and heats up much more quickly, with no cold spots along radiator bottoms. In my experience, this product had worked better than others I've used in the past.

    Verified purchase: YesCondition: New

  • by db0779
    09 Aug, 2018Most critical review

    Cheap , effective alternative to power flushing .

    I have used it in the past so I know what to expect . It's easy to use and very affective and here's my tip , leave it circulating for a few weeks or months to get the best out of it , it won't do any harm .

    Verified purchase: YesCondition: New

  • by william4253
    18 Feb, 2020

    Impressive product

    2L into 5 bed-house heating system and a couple of days later a really noticeable decrease in cool spots at bottom of several radiators which I'd guessed were due to sediment

    Verified purchase: YesCondition: New

  • by dnfy5677
    21 Oct, 2020

    Rice Crispies in the boiler?

    Cured system of pops, squeaks and wheezes. Pump seems smoother now

    Verified purchase: YesCondition: New

  • by chehabmum
    13 Jan, 2021

    Sentinel x400

    I use it regularly to improve the efficiency of the heating system

    Verified purchase: YesCondition: New

  • by abdur786
    04 Sep, 2022

    Excellent product

    Highly recommend this product excellent EBAYER AAAAA++++

    Verified purchase: YesCondition: New

  • by jim657
    26 Sep, 2021

    Have used this product before so knew what to expect

    Verified purchase: YesCondition: New

  • by 123-fishheads
    07 Jul, 2021

    It's a good cleaner.

    I'd recommend it.

    Verified purchase: YesCondition: New

  • by trev.secbowls8
    21 Nov, 2018

    Great product

    Dose what it's for but i left it for longer than it says .

    Verified purchase: YesCondition: New

  • by tatty-teddy-emily-12
    15 Mar, 2017

    Good Deal

    This does what it says on the bottle!

    Verified purchase: YesCondition: New

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