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SEN-X7001L | Sentinel X700 Biocide 1Litre Type:Biocide Reliance Valves gateway is aSentinel X700 Biocide provides protection for underfloor central heating systems against bacterial and fungal contamination. Such contamination can cause blockages in the system, unpleasant smells, and corrosion within the system, disrupting the smooth and efficient operation of the underfloor heating system. Note: Use biocides safely. Always read the label. ## KEY FEATURES Effective biocide and fungicide Long lasting protection Easy and quick to dose