Sentinel X400 Sludge Remover Rapid Dose 300ml

By Sentinel Product code: 35318 Pack size: Each

£20.48 Exc. VAT £17.07
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Product Details

High performance cleaner, specifically designed for cleaning older central heating systems. A non-acid treatment which restores circulation to radiators and pipework. Ruthlessly efficient formula shifts built-up magnetite sludge, eliminating cold spots in radiators and restoring proper heat distribution.

Technical Specification
Brand Sentinel
Unavailable offshore 1
Unavailable offshore
Manufacturer ID X400RD-12X300ML-GB
Safety Data Sheet click here
Type Cleaner
Volume (L) 0.3
Volume (ml) 300
Container Type Liquid
Range Name X400
Delivery details

DELIVERY OPTIONS (UK mainland only)

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

  • Order before 7pm 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 or £5.00 for orders over £25, 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-7pm Saturday and 9-4pm Sunday. Please check your local branch is open on the branch locator page, before you visit.

Once you have placed your order online, we’ll have it ready for you at the branch 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 branch, the order must be placed by 7pm Monday to Thursday for collection the next day. Orders placed after 7pm 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.

Reviews
Sentinel X400 Sludge Remover Rapid Dose 300ml is rated 4.0 out of 5 by 9.
Rated 2 out of 5 by from Check it hasn't been partly used already. I'm pretty sure someone had used part of this already. When I got home from collecting I realised the tube, which wasn't connected to the top as per the product image, already had fluid in it. And the cap on the product's seal was broken. It's supposed to run for up to 30 second filling your system, I counted to 8. Problem with returning is I've already driven out once already to make a collection, and I knew this was the last bottle they had.
Date published: 2022-04-25
Rated 5 out of 5 by from I will use nothing else, this aerosol is amazing! This aerosol is great. No messing about with the 1 ltr bottles. No mess or waste. Can use from two hours to 4 weeks in the system. But you must get it out!
Date published: 2021-03-06
Rated 5 out of 5 by from Sludge Remover Easy to use and reasonably priced
Date published: 2021-02-21
Rated 4 out of 5 by from Early days Seemed to make a bit of an improvement
Date published: 2021-02-16
Rated 1 out of 5 by from Definitely avoid the rapid dose Bought 2 bottles of the rapid dose x400, 1st bottle didn't work as it didn't have enough pressure and the solution trickled out off the bottle. The plastic connector on the second bottle snapped off inside the Maglean dosing valve. I had to remove the Magclean and spent around an hour picking the plastic out with a pin.
Date published: 2021-02-06
Rated 5 out of 5 by from Easy to use and effective This is the first time that I have used the X400 rapid dose product and I have to say that it was really easy to use and very effective at clearing the blockage caused by sludge in a large radiator. The application tube fits easily into the bleed valve of an isolated radiator and fully feeds into the rad within 30 seconds with no mess and no need to drain the system.
Date published: 2020-12-16
Rated 5 out of 5 by from Great product fantastic price Excellent product and very competitive price
Date published: 2020-06-08
Rated 5 out of 5 by from Simple to Use It's already starting to clear my blocked radiator. Easy to follow instructions and videoonline if you want.
Date published: 2020-06-07
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