

Desertcart purchases this item on your behalf and handles shipping, customs, and support to India.
⚡ Clean fast, heat smart — don’t let corrosion slow you down!
Sentinel X800 Fast Acting Cleaner is a 1-litre liquid solution engineered to rapidly remove corrosion deposits and scale from central heating systems within one hour. Its advanced chemical formula targets debris precisely, restoring system efficiency and making it ideal for both hot and cold systems, including powerflushing applications. With a refreshing lemongrass and aloe vera scent, it combines performance with a pleasant user experience.

| ASIN | B009L4KXIA |
| Best Sellers Rank | 21,785 in DIY & Tools ( See Top 100 in DIY & Tools ) 31 in Radiators |
| Brand | Sentinel |
| Brand Name | Sentinel |
| Capacity | 1 litres |
| Contains Liquid Contents? | Yes |
| Country of Origin | United Kingdom |
| Customer Reviews | 4.6 out of 5 stars 890 Reviews |
| Global Trade Identification Number | 05016402000239 |
| Included Components | Sentinel X800 Fast Acting Cleaner 1 litre |
| Item Form | Liquid |
| Item Type Name | Cleaner |
| Item Volume | 1000 Millilitres |
| Item Weight | 1.13 Kilograms |
| Item form | Liquid |
| Item volume | 1000 Millilitres |
| Manufacturer | Sentinel |
| Material Features | Liquid |
| Material feature | Liquid |
| Model Number | X800L-12X1L-EXPA |
| Number of Items | 1 |
| Part Number | X800 |
| Scent | Lemongrass; Aloe vera |
| Size | 1 l (Pack of 1) |
| Specific Uses For Product | Boiler, Heating System |
| Specific uses for product | Boiler, Heating System |
| Surface Recommendation | Stone |
| UPC | 798256178412 |
| Unit Count | 1000.0 millilitre |
J**N
Must buy !
Just clean your system !! This does a excellent job , I left mine in for 24 hrs and it did a great job.
R**.
Combi Clean much needed
My Combi Boiler was Kettleing/Knocking when showering or filling the kitchen sink, I mentioned it when the boiler was serviced and plumber said the plate heat exchanger to heat the water was blocked with limescale and needed replacing, obviously you don't buy a new kettle when it gets bit of limescale on the element! So I opted for this treatment. Best way I could think to add the liquid was the towel heater as it has a nice big fill plug on the top of it and easy access too. I closed both the inlet valves to the towel rail and drained half of the water using the top plug as an tap to control the flow. Once 2 litres out I poured in the treatment refitted the plug and opened the valves, switched on the boiler to circulate the treatment, turned on the hot water tap on to make sure it would clean the plate heat exchanger, 24 hours on there is no knocking or ketteiling, lovely perfect shower at the perfect temperature. Now working out how to drain the treatment out. I will update ASAP. Hope this helps a compitant DIY.. "I can do this" person. Or get a plumber in. Update... Draining the cleaning agent was easier than I thought possible as the towel rail plug is 15mm thread, all I needed to do was close the valves (both in and out) fit a 15mm thru joint with a small piece of 15mm pipe into the plug as mentioned and add a bit of garden hose to go into the loo, the tricky bit was putting the heating valves to fill and opening the towel rail valves so it would flush out the cleaning agent. I did 3 clean flushes till the CH water was clear. Don't forget to do the same process again with the inhibitor to ensure you don't need to do it again soon!
D**R
Good value for money product
You can't go far wrong when using this product. It does work and fulfils the task it's produced for.
G**R
Did a good job.
Used this in my heating system after adding new radiator. Left it in for around a couple of weeks during autumn while the heating was only being used a couple of hours in the evening. Flushed the system out, water was a brownish colour, put inhibitor in and refilled it. Found that the heating system is now a lot quieter.
M**S
Good value works.
Works well
J**J
Powerful cleaner that's boosted my central heating
I am impressed with this. Following some online instructions I drained my system first, which took forever. I began to think that the whole system is badly set up and the drain tap was somehow in the wrong place, but having refilled the system with this cleaner in (added via a radiator at the top of the house) and run it for an hour a day for three days I was pleasantly surprised by how quickly the system now drained. Clearly some sludge had been moved. On then completing the job and filling up with fresh water then running the system for the first time the radiators that were usually a bit rubbish and prompted me to clean in the first place suddenly started working much better. I am very impressed with how well this has helped my system. It will be my product of choice for future cleans, which I might actually do a bit more often.
E**M
Quick to use
Does the job, good value
E**E
Did the job as expected
The effects of this cleaning product inside a heating system is largely unseen. So it’s hard to give a review that’s directly related the products performance. This review is purely based on trusting that the product has done its job effectively.
F**D
Entrostungsmittel mit Wasser verdünnbar.
Besten Dank, Produkt noch nicht verwendet. Nach der Verwendung schreibe ich eine Rezension.
F**O
Pulizia profonda di radiatori e tubature
Ho utilizzato il Sentinel 88015 Disincrostante X800 per intervenire su radiatori e tubature con depositi di calcare e incrostazioni, e posso dire che è un prodotto efficace e professionale per manutenzione impianti di riscaldamento. Questo disincrostante è formulato per rimuovere incrostazioni di calcare, fanghi e depositi minerali presenti all’interno dei radiatori e delle tubature, ripristinando nel tempo la circolazione dell’acqua e l’efficienza termica dell’impianto. Dopo il trattamento ho notato che i radiatori si scaldano meglio e il flusso dell’acqua nelle tubature è più regolare, segno che il liquido ha fatto il suo lavoro. Pro: Efficace contro calcare e incrostazioni in radiatori e tubi Migliora efficienza termica e circolazione dell’acqua Ideale per manutenzione periodica, soprattutto in zone con acqua dura Formulazione adeguata anche per sistemi complessi Contro: Richiede i giusti tempi di posa e risciacquo per sicurezza Non è un prodotto “rapido istantaneo”: serve seguire le istruzioni per risultati ottimali Deve essere usato con cautela (manipolazione con guanti e adeguata ventilazione) Conclusione: Il Sentinel 88015 X800 è un disincrostante di qualità che fa bene il suo lavoro su radiatori e tubature, soprattutto quando l’impianto mostra segni di calcare o depositi che ne riducono l’efficienza. È un prodotto consigliato per chi tiene alla manutenzione dell’impianto di riscaldamento e alla sua longevità. 👍🙏
W**I
x800
heb het toegepast en wacht de resultaten af.
G**U
Bien lire la notice
Produit super efficace , mes radiateurs chauffent mieux et plus vite .Bien lire le mode d
C**N
Cumpla con su cometido
Cumple con su cometido es un poco complicado introducirlo por uno de los radiadores como tube que hacer lo pero con un poco de paciencia y con una jeringuilla se consigue introducirlo. Lo único que tienes que calcular bien el vaciado del mismo para que esté entre si no acabara rebosando
Trustpilot
2 days ago
1 week ago