Skip to content
Need Help
Screwfix Logo
Activating the button will move focus to the expanded search input field
StoresSelect a store
Checkout
CLICK & COLLECT in as little as 1 minute
CLICK & COLLECT in as little as 1 minuteNEXT DAY DELIVERY AVAILABLE 7 days per week886 Stores Nationwide find your local store60 Minute Delivery with Sprint
SHOP OUR LATEST OFFERS

Sentinel X100 Central Heating Scale Inhibitor 1Ltr (79683)

Product rating 4.8 stars out of 5
Product rating 4.8 stars out of 5
 
Sentinel X100 Central Heating Scale Inhibitor 1Ltr
Latest Offers
  • 1 Year Guarantee
  • Ensures Optimum Boiler Efficiency
  • Protects against Pin-Holing
Get this for £9.99-view details
Save26%
£13.98Inc Vat
Was £18.99

Sentinel X800 Central Heating System Cleaner 1Ltr (704PT)

Product rating 4.9 stars out of 5
Product rating 4.9 stars out of 5
 
Sentinel X800 Central Heating System Cleaner 1Ltr
Great Value Product
  • Treats 100 Litres
  • Not Classified Under GHS/CLP Regulations
  • Works in Cold Systems
£19.97Inc Vat

Sentinel X400 System Restorer 1Ltr (89458)

Product rating 4.6 stars out of 5
Product rating 4.6 stars out of 5
 
Sentinel X400 System Restorer 1Ltr
Great Value Product
  • Removes Sludge
  • Breaks Down Iron Oxide
£17.99Inc Vat

Sentinel X200 Boiler Noise Reducer 1Ltr (43140)

Product rating 4.8 stars out of 5
Product rating 4.8 stars out of 5
 
Sentinel X200 Boiler Noise Reducer 1Ltr
EnergySaving
  • Suitable for All Boiler Types
  • Restores Boiler Efficiency
  • Eliminates Kettling
£16.97Inc Vat

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

Product rating 3.9 stars out of 5
Product rating 3.9 stars out of 5
 
Sentinel X100 Rapid Dose Central Heating Scale Inhibitor 300ml
EnergySaving
  • 1 Year Guarantee
  • Ideal for Domestic Central Heating Systems
Save22%
£17.47Inc Vat
Was £22.49

Sentinel X400 Rapid Dose System Restorer 300ml (9217V)

Product rating 4.3 stars out of 5
Product rating 4.3 stars out of 5
 
Sentinel X400 Rapid Dose System Restorer 300ml
EnergySaving
  • Treats 100 Litres
  • Non-Acidic
  • Non-Acidic Formulation
£19.97Inc Vat