FREE DELIVERY OVER £50
CLICK & COLLECT
Screwfix Gift Cards a perfect gift
SERVICE UPDATES

As an essential retailer, our stores remain open across the UK

Sentinel X100 Rapid Dose Central Heating Scale Inhibitor… (5058V)

£ 15.49INC VAT

Add to basket for...

Check stock in your local store

Sentinel X100 Rapid Dose Central Heating Scale Inhibitor 300ml (5058V)

Provides protection for clean central heating systems against limescale and corrosion, ensuring maximum efficiency and minimising fuel usage. Suitable for use in all types of indirect central heating system. Multi-location application combined with twist and dose system.

  • 1 Year Guarantee
  • Ideal for Domestic Central Heating Systems

More Info

View all: Sentinel Inhibitors & Protectors

£15.49INC VAT (£51.63/Ltr)

Add to basket for...

Check stock in your local store

Sentinel X100 Rapid Dose Central Heating Scale Inhibitor 300ml is rated 4.0 out of 5 by 14.
  • y_2021, m_1, d_19, h_22
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_14
  • loc_en_GB, sid_5058V, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getAggregateRating, 12ms
  • REVIEWS, PRODUCT

Add to saved list...

Save
Rated 5 out of 5 by from Easy to use Really easy to use and worked fine. Delivered on time and 0
Date published: 2021-01-05
Rated 5 out of 5 by from Plumber-in-a-Can Dead easy to use. Picture only instructions just like IKEA A bit more expensive than the bottle of fluid but worth it for the extra convenience. Ideal for DIY. Not one for the Pro.
Date published: 2020-12-10
Rated 5 out of 5 by from Very easy product to use. Used to replace drained and cleaned system, I guessed at quantity of fluid in in the system and one cannister seemed appropriate. Easy product to use with comprehensive instructions.
Date published: 2020-11-05
Rated 1 out of 5 by from Absolute garbage! I can’t stress enough how bad this product is. I ended up with a duff can that did nothing but leak when plugged into the system. Just stick to the old fashioned way of doing putting inhibitor in!
Date published: 2020-11-04
  • y_2021, m_1, d_19, h_22
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_14
  • loc_en_GB, sid_5058V, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 12ms
  • REVIEWS, PRODUCT

How much do I need for my house?

I've got 12 doubles and 6 single rads.
Asked by: Paulbag
Hello - The recommended dosing amount is 1% of your system volume or 1 can of Sentinel X00 Rapid Dose for every 8-10 radiators. Kind Regards, Sentinel Customer Services
Answered by: Sentinel Product Help
Date published: 2021-01-15

Does this come with an adaptor for use with a filling loop?

Asked by: DryGoods
Hello, It does - have a look at our video for an explanation: https://www.youtube.com/watch?v=TzI5hWLcN_I&feature=emb_title Kind regards, Sentinel Customer Services
Answered by: Sentinel Product Help
Date published: 2020-12-03

How many radiators will this treat?

Is this more concentrated than the 1 litre bottle of X100 and how may radiators will it treat?
Asked by: Fatkebab
Was not enough for 10 medium size radiators. Going to buy another.
Answered by: Masterz
Date published: 2020-12-04

Hi team, can I use this in an open vented system(with an overhead F&E tank)? Can I add this into a radiator or towel rail?

Asked by: aarun
Hello, Yes, it is possible to dose Rapid-Dose to an open vented system either via a radiator or towel rail. Please see our video for further help: https://www.youtube.com/watch?v=TzI5hWLcN_I&feature=emb_title Kind regards, Sentinel Customer Services
Answered by: Sentinel Product Help
Date published: 2020-12-03

Can this be used via a bleed hole?

I have a totally sealed system I need to drain amd swap a single for double radiator. The system has no fill point, so need filling back up the drain. So I can't add the inhibitor easily.
Asked by: TheFofS
It could but it'd be easier to unscrew the radiator blanking plug & screw the supplied adapter into the hole. I dosed our sealed combi boiler system via a towel radiator but any radiator would have done. Just follow the instructions on the Sentinel video.
Answered by: Caravanjl
Date published: 2020-10-24
  • y_2021, m_1, d_19, h_22CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.12
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_5
  • loc_en_GB, sid_5058V, prod, sort_[SortEntry(order=LOCALE, direction=DESCENDING), SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 18ms
  • QUESTIONS, PRODUCT
  • bvseo-msg: BV SEO Content for this product did not include verbose reviews.;
Specification
Brand Sentinel
Label Info 1: Signal Word Warning
Label Info 2: Hazard Statements H229 Pressurised container: may burst if heated.EUH 210 Safety data sheet available on request.
Label Info 3: Precautionary Statements P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.P251 Do not pierce or burn, even after use.P410 + P412 Protect from sunlight. Do no expose to temperatures exceeding 50 o C/ 122 o F.
Manufacturer Guarantee 1 Year Guarantee
Model No X100
Pack Size 1
Pieces in Pack/Case 1
Product Type Rapid Dose Central Heating Scale Inhibitor
Volume 300 ml

Hazardous - Delivery unavailable for any offshore location.

Downloads

Safety Data Sheet (COSHH)