[Suitability] The adapters are time-saving, lightweight and quick to install. Usefully adapters for charging and service tools, such as vacuum pump, can tap or oil injector to adapt between R12, R22 system and R134a systems. [Quality] Brand new, high quality parts. Solid brass construction, can be used in extreme conditions, high temperature resistant, durable and safe. Easy to install, works well to connect air conditioning manifold hoses for storage. [Details] 1/4" SAE FL female x 1/2" ACME-Male, 1/2" ACME female x 1/4" SAE FL male. Removable spool. [Package Includes] 2 pieces x adapter. Please check carefully before purchase to make sure the part is suitable. [Customer Service] This product comes with 12 warranty. If you have any questions or concerns, please feel free to contact us, and we will do our best to solve your problem., Weight: 0.0220462262 pounds, Manufacturer: gohantee