A thorough cleaner for sludged systems, restoring circulation to radiators and pipework by shifting built-up magnetite sludge, eliminating cold spots in radiators and restoring proper heat distribution Restores circulation to sludged up radiators and pipework Eliminates radiator cold spots Prepares older systems for the installation of new components Has a non-acid formula which does not cause pin-holing or leaks, Weight: 0.0022 Pounds, Manufacturer: Sentinel