This green fluro dye from Spectroline’s WATER-GLO ULTRA range is made for water-based systems, not oil. Use it to find leaks in water/glycol coolant, heat transfer systems, boilers, heaters and pumps, sprinkler systems and storage tanks.

It works in both static and circulating systems, so it can be used on a tank or line that is not running as well as on a cooling circuit. It will also pick up small leaks, including ones that have evaporated or sit among condensation.

Filtered to 2 microns and NSF registered. A UV or violet leak detection lamp and matching safety glasses are required.