Features Easy to Install and Use: This air conditioner manual rotation oil and dye injector comes with a low side port coupler and a quick snapping in 13mm female connector to the R134a manifold, suitable for automotive AC systems. Wide Application: Compatible with fluorescent dyes used for leakage monitoring, all oil types including POE or mineral oil, and all home, office, and car air conditioning systems. Reliable Work: A professional tool with an aluminum alloy body and brass connector on a 1/4in female connector of a high pressure hose, which is durable, wear resistant, and corrosion resistant. Standard Design: R134A low side quick connector with 1/4in SAE male connector and 13mm female connector. Good Aluminum: Adopting premium aluminum material, the 2oz oil injector is not likely to deform, and very durable for long term use. Specification: Item Type: Oil Injector Material: Aluminum Package List: 1 x Oil Injector 1 x Connector 1 x User Manual Package List 1 x Oil Injector 1 x Connector 1 x User Manual