Sentinel X100 System Inhibitor Rapid Dose 300ml

By Sentinel Product code: 81368 Pack size: Each

£20.58 Exc. VAT £17.15

Product Details

Maximise the efficiency of your central heating system by treating it with Sentinel X100 inhibitor. It provides protection for clean systems against limescale and corrosion, helping to extend its lifespan and minimise fuel usage.

Using this 300ml Rapid-Dose is the quickest and easiest way to do the job – just a simple twist will give your system the dosing it needs in 30 seconds. X100 is suitable for use in all types of indirect central heating systems.

• Suitable for use in all types of indirect central heating system

• Protects clean systems against limescale and corrosion

• Extends life of central heating system

• Improves system efficiency and reduces fuel usage

• Contains TripleTech™ anti-corrosion technology

• Suitable for hard, soft and artificially softened water

• Helps prevent the formation of hydrogen gas

Technical Specification
Brand Sentinel
Unavailable offshore 1
Manufacturer ID X100RD-12X300ML-GB
Safety Data Sheet click here
Type Inhibitor
Volume (L) 0.3
Volume (ml) 300
Container Type Liquid
Range Name X100
Delivery details

DELIVERY OPTIONS (UK mainland only)

Next Day Delivery – £5.00 or FREE for orders over £25

  • Order before 9pm Monday to Thursday for next business day delivery
  • Order Friday to Sunday before 5pm for Monday delivery
  • Orders placed after Sunday at 5pm will be delivered the following Tuesday
Pre-12pm Delivery – £10.00 to arrive before 12pm on the scheduled days above
Saturday Delivery – £10.00 or £5.00 for orders over £25 & FREE for orders over £75 (order by 6pm Friday)
Sunday delivery – £10.00 or £5.00 for orders over £25 & FREE for orders over £75 (order by 4pm Saturday)
Times may vary for items being delivered directly from the supplier. For more information, please visit our delivery information page below.
Items over 30kg can only be delivered from Monday to Friday. If ordered before 6pm, please allow up to two business days for delivery. Orders placed after 6pm Thursday will be delivered after the weekend.
More about Delivery
Click & Collect details

Collection Details

Our opening times are 7am-8pm Monday-Friday, 7am-6pm Saturday and 9-4pm Sunday. Please check your local store is open on the store locator page, before you visit.

Once you have placed your order online, we’ll have it ready for you at the store you have selected in as little as 5 minutes. We will hold your order for 14 days, after which we will automatically generate a refund to the payment type you used to place the order.

Don’t forget your mobile number – Make sure your mobile number is added so that we can text you when your order is ready to collect. Please wait for your text or email before coming to collect your items.

If an item is eligible for Next Business Day Collection in store, the order must be placed by 9pm Monday to Thursday for collection the next day. Orders placed after 9pm on Thursday, and up to 5pm on Sunday, will be available for collection on Monday. For larger items over 30kg, please allow two business days.

Sentinel X100 System Inhibitor Rapid Dose 300ml is rated 4.7 out of 5 by 27.
Rated 5 out of 5 by from Well worth the cost. It has Made a big difference to my centra heating system once applied.
Date published: 2023-03-14
Rated 5 out of 5 by from Excellent Very good product. Very easy to get it into the central heating system via the bleed screw on the radiator.
Date published: 2023-03-05
Rated 5 out of 5 by from Central heating inhibitor Very quick to use. Hassle free. Used it to top up my central heating after changing a few radiators. Sealed system. Added via one of the new radiators I fitted
Date published: 2023-01-25
Rated 5 out of 5 by from The best inhibitor The best inhibitor in an easy to use applicator. I always inject through the filling loop valve (on the heating side of course). Disconnect the filling loop at that end first. DON’T FORGET to cut off the narrow red nozzle if you’re not injecting into a radiator vent point - it can interfere with the fill valve.
Date published: 2023-01-16
Rated 5 out of 5 by from . Easy to use as comprehensive instructions are included
Date published: 2022-10-12
Rated 5 out of 5 by from Easy application Easy to apply. Does what it says on tin
Date published: 2021-11-20
Rated 5 out of 5 by from Express inhibitor treatment Easy to treat the central heating system through a filling loop or magnetic filter drain point. Saves time.
Date published: 2021-10-07
Rated 5 out of 5 by from Sentinel inhibitor Very easy to use - much easier than other rapid dose products I have used
Date published: 2021-09-30
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