Skip to content
Need Help
Screwfix Logo
Activating the button will move focus to the expanded search input field
StoresSelect a store
No items in basketCheckout
FREE DELIVERY OVER €50 7 days per week
FREE DELIVERY OVER €50 7 days per week44 STORES NATIONWIDE find your local storeCLICK & COLLECT in as little as 1 minuteDELIVERY IN AS LITTLE AS 30 MINUTES with Sprint
PACKED WITH POWER! SAVE UP TO 25%. SHOP NOW

Sentinel X100 Central Heating Scale Inhibitor 1Ltr (79683)

Sentinel X100 Central Heating Scale Inhibitor 1Ltr
Great Value Product
Product rating 4.8 stars out of 5
Product rating 4.8 stars out of 5
 
  • 2 Year Guarantee
  • Ensures Optimum Boiler Efficiency
  • Protects against Pin-Holing
Save20%
€17.95Inc Vat
Was €22.45
Check stock in your local store
Fulfilment options

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

Sentinel X800 Central Heating System Cleaner 1Ltr
Great Value Product
Product rating 4.7 stars out of 5
Product rating 4.7 stars out of 5
 
  • Treats 100 Litres
  • Works in Cold Systems
  • Ideal for Powerflushing
Save12%
€20.95Inc Vat
Was €23.95
Check stock in your local store
Fulfilment options

Sentinel X400 System Restorer 1Ltr (89458)

Sentinel X400 System Restorer 1Ltr
Great Value Product
Product rating 4.7 stars out of 5
Product rating 4.7 stars out of 5
 
  • Removes Sludge & Deposits Effectively
  • Breaks Down Iron Oxide
  • Restores Heating System Efficiency
Save19%
€18.45Inc Vat
Was €22.95
Check stock in your local store
Fulfilment options

Flomasta Central Heating Inhibitor, Cleaner & Filling Kit 1Ltr 3 Pcs (1349J)

Flomasta Central Heating Inhibitor, Cleaner & Filling Kit 1Ltr 3 Pcs
Great Value Product
Product rating 4.8 stars out of 5
Product rating 4.8 stars out of 5
 
  • 2 Year Guarantee
€18.05Inc Vat
Check stock in your local store
Fulfilment options

Sentinel X200 Boiler Noise Reducer 1Ltr (43140)

Sentinel X200 Boiler Noise Reducer 1Ltr
Great Value Product
Product rating 4.8 stars out of 5
Product rating 4.8 stars out of 5
 
  • Suitable for All Boiler Types
  • Restores Boiler Efficiency
  • Eliminates Kettling
€17.45Inc Vat
Check stock in your local store
Fulfilment options

Sentinel Internal Leak Sealer 1Ltr (99730)

Sentinel Internal Leak Sealer 1Ltr
Great Value Product
Product rating 4.6 stars out of 5
Product rating 4.6 stars out of 5
 
  • 2 Year Guarantee
€16.85Inc Vat
Check stock in your local store
Fulfilment options