Weil-McLain Sentinel x100-RD Rapid-Dose Inhibitor, 300 mL Canister, Colorless to Yellow, Amber Sentinel x100 Inhibitor provides protection for clean hydronic heating systems against limescale and corrosion. Suitable for use in all types of indirect heating system, Sentinel x100 Inhibitor will extend the life of the system, ensuring maximum efficiency and minimising fuel usage.

• Heavy-duty inhibitor
• Protects against limescale and corrosion
• Suitable for all system metals
• pH neutral formulation
• Ensures optimum system efficiency
• Helps prevent the formation of hydrogen gas
• Quickest dosing means less time on the job
• No need to drain or depressurise the system
• Adaptor included for application via boiler drain valve Sentinel x100 Inhibitor provides protection for clean hydronic heating systems against limescale and corrosion. Suitable for use in all types of indirect heating system, Sentinel x100 Inhibitor will extend the life of the system, ensuring maximum efficiency and minimising fuel usage.,
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Sentinel Rapid-Dose X400 has been formulated for the effective cleaning of hydronic heating systems which may contain corrosion debris and other sludge. Sentinel Rapid-Dose X400 disperses old corrosion products. It is ideal for use where a new boiler or pump is to be fitted to an existing system or where radiators have cold areas or are partly blocked due to sludge build up. x400 reduces scale on heat transfer surfaces which increases boiler efficiency and reduces noise. The product is a non-acid formulation which can be used in all types of indirect heating systems including those containing aluminum components.

• Quick and easy product addition to all systems
• No need to draw off water, release system pressure or wait for system to cool
• Full discharge in about 30 sec
• Effectively removes radiator sludge
• Helps restore circulation
• Removes scale
• Restores system effectiveness
• Suitable for all metals including aluminum
• Easy to handle
• Neutral pH - no neutralization procedure needed
• Easy and safe to handle, absolutely no mess

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Slant/Fin X400-RD