Features and Benefits: * Disposable cartridges that are easy to load without fumbling or messy spills * Continuous trouble-free leak detection with just one cartridge * OEM Approved and SAE-J2297 certified A/C dye * 4 oz. (120 ml) cartridge services 32 small A/C systems or 16 regular A/C systems * Service Stickers included The "One" universal replacement cartridge!