Specifically designed for existing systems Sentinel X400 System Restorer is a non-acid treatment for cleaning older heating systems, restoring circulation to radiators and pipework. A ruthlessly efficient way to eliminate the build-up of magnetite sludge, X400 is the quick and easy way to eliminate cold spots and restore full heat emission. Helps to improve and maintain system efficiency and conserve fuel. New systems should be cleaned with Sentinel X300 System Cleaner or X800 Jeflo Ultimate Cleaner.

Restores systems with circulation problems

- Eliminates radiator cold spots

- Can be used in all systems

- Prepares existing systems for the installation of new boilers, pumps or panels

- Does not cause pin-holing or leaks