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Sentinel X100 system inhibitor 1 litre

Sentinel

Sentinel X100 system inhibitor 1 litre

Sentinel X100 is a 1 litre leave-in central heating inhibitor that protects against limescale and corrosion, treating up to 100 litres of system water.

At a glance

  • Also known as 1930006
Manufacturer part no.
SX100
Showing prices

£30.25

£25.21 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

Sentinel X100 is a leave-in central heating system inhibitor, a clear pale yellow to amber liquid with a specific gravity of 1.10. It protects clean central heating systems, including those containing aluminium, against limescale and corrosion using Sentinel's TripleTech anti-corrosion technology.

Signs this part needs replacing

  • Radiators with cold spots, especially towards the bottom
  • Noisy boiler or pump, or banging/kettling sounds
  • Black sludge or discoloured water when bleeding a radiator
  • System water that has not previously been dosed, or has recently been drained and refilled

Before you order

  • Check whether the system has been chemically flushed; a flush is normally carried out before first dosing
  • Confirm total system volume so the correct number of bottles is ordered
  • Not a substitute for a power flush on a heavily sludged system

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.