Product details:

Permanently seals refrigerant leaks and prevents future leaks; use with systems up to 5 tons Safe for all air conditioner and refrigeration systems, valves, and tools. Compatible with all types of refrigerants and oils Injects easily and directly. No more pump downs, fussy syringes, or pressure sensitive cans; UV dye detects large leaks requiring repair Designed and used by HVAC professionals, our formula has been proven through over a decade of research Proudly made in the USA; high quality and most trusted leak stop