Sentinel X100 Inhibitor provides reliable, leave-in protection for central heating systems against internal corrosion and limescale buildup.

Suitable for all types of indirect central heating systems, Sentinel X100 extends boiler life, ensures maximum heating efficiency, and helps lower fuel bills.

Main product features:

• Ultimate Protection: Actively prevents boiler limescale and system corrosion.
• TripleTech™ Technology: Multi-metal protection tailored for copper, steel, and aluminum.
• Energy Efficient: Energy Saving Trust Recommended to help reduce household energy bills.
• System Safe: Non-acidic, pH-neutral formulation that prevents radiator cold spots and hydrogen gas build-up.
• Universal Use: Effective in hard, soft, and artificially softened water.

Why Use Sentinel X100?

Limescale and corrosion are the primary causes of central heating breakdown, leading to noisy boilers and cold radiators. Once your system is cleaned, adding Sentinel X100 creates an invisible shield to protect your multi-metal pipework and components from future damage.

How to Use & Dose

• Open Systems: Dose via the F&E cistern, via a by-pass feeder, or use a Sentinel Dosing Vessel.
• Sealed Systems: If empty, add at any convenient point before filling. If full, inject via the filling loop.
• Concentrate Gel: Apply directly via a radiator air bleed valve or filling loop using a standard caulk gun and adapter.