Hydrocyclone filter to capture all types of circulating debris

This product has now been discontinued and is unavailable; for continuing filter needs please visit https://www.sentinelprotects.com/uk/products/domestic/central-heating-systems/sentinel-eliminator-vortex

If left to circulate, central heating system debris can cause premature failure of pumps or valves or settle as deposits, impacting boiler efficiency and the effectiveness of the system. The Sentinel Eliminator® is the first central heating system filter to combine the use of true hydrocyclones with a special multi-magnet arrangement to maximise the removal and retention of both magnetic and non-magnetic debris.

Key features

  • Quadra-Cyclone® Technology
  • Removes both magnetic and non-magnetic debris
  • Easy to fit to any pipework orientation
  • Dual maintenance options: dismantle unit or use drain valve
  • Dual seal arrangement to minimise risk of leakage
  • Cannot block: full unit does not affect system flow
  • Four magnets to optimise capture of material removed by cyclones

Available sizes


Sentinel Eliminator® is the first filter to use Quadra-Cyclone® Technology to eliminate magnetic and non-magnetic debris. Unlike other system filters that rely on magnets alone to remove only magnetic material, Eliminator removes all types of debris using four true cyclones to separate circulating particles from the system flow. Additionally, four magnets strategically positioned in the collection chamber aid the capture and retention of the separated particles.

Not only does the Eliminator provide continuous debris removal, it has features to help minimise time spent on site. The unit is simple to fit and can be installed on any orientation of pipework and there are two ways to remove debris from the unit; via the drain valve for a quick flush or dismantle for a complete clean and to show customers what the unit has captured. The filter has been designed so that it cannot block and the dual seals minimise the risk of leakage.

Installation manual


Main unit upright vertical only
Flow aligned with directional arrow

Connectors: 22mm compression
Height: 251mm
Width: 108mm
Depth: 153mm
Weight (unboxed): 1.5kg