Flaretite refrigerant and gas seals are used to prevent leaks that are caused by galling, vibration, pulsation and extreme temp changes. Ultimate solution for preventing leaks and are easy to use. Locking tabs clip seal securely on fittings. High pressure rated and high strength design. The seal is coated with a loctite sealant. Creates a perfect leak-free solution. Flaretite refrigeration and gas seal; used to prevent leaks; 45 degree copper stamping with loctite coating. FOR THE TRADESMAN: RectorSeal is recognized as a leading provider of quality solutions for the professional trades serving heating, ventilation, and air conditioning (HVAC/R), plumbing, electrical, and construction markets.