FREE UK Delivery* <br />No Minimum Order!

FREE UK Delivery*
No Minimum Order!

Next Day & Saturday <br />Delivery Options

Next Day & Saturday
Delivery Options

Free UK Returns

Free UK Returns

0% Finance Available over £99

0% Finance Available over £99

09/04/2020 - DELIVERY & DESPATCH OPERATING AS USUAL Click here for more info / Store Closures
Sentinel

Sentinel began life as a brand in 1988 with X100, X200, X300, X400 and X500. This range of boiler and central heating system treatment chemicals still form the

Sentinel began life as a brand in 1988 with X100, X200, X300, X400 and X500. This range of boiler and central heating system treatment chemicals still form the basis of the range today and remain immensely popular.

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6 Items

per page
Set Descending Direction
  1. In stock - FREE DELIVERY - Order by 3.30pm For Next Day Delivery
    £17.50 £14.58
  2. In stock - FREE DELIVERY - Order by 3.30pm For Next Day Delivery
    £15.50 £12.92
  3. In stock - FREE DELIVERY - Order by 3.30pm For Next Day Delivery
    £15.50 £12.92
  4. In stock - FREE DELIVERY - Order by 3.30pm For Next Day Delivery
    £28.49 £23.74
  5. In stock - FREE DELIVERY - Order by 3.30pm For Next Day Delivery
    £28.49 £23.74
  6. Out of stock - This Product is Currently Unavailable
    £19.00 £15.83

6 Items

per page
Set Descending Direction