Function: 1. [Good sealing] Adapter vacuum pump ma quick and easy connection and disconnection dla high flow, just manually tighten the adapter of the vacuum pump to get a good seal. 2. [Brass Material] The set is made of high-hardness brass, which provides durability and rust resistance that can handle the most extreme conditions. 3. [T-grip] The T-handle on the valve is convenient do, can rotate the valve with less effort, thicken the gasket to prevent leakage and ma long service life. 4. [Complete set] You will receive a self-sealing tap do cans,non-self-sealing tap do cans,adapter vacuum pump 1/4 inch female to 1/2 inch male,adapter refrigerant tank 1/2 inch female to 1/4 inch male and do spool removal tool can meet your connection needs and make everyday life easier. 5. [Wide application] ma smooth round handle, which is easy do hold and fits do all different R134A cans that can be found do filling car air conditioning systems. Specification: Item Type: Self-Sealing Tap Valve Material: Brass Vacuum Pump Adapter Specifications: 1/4 inch female do 1/2 inch male Refrigerant Tank Adapter Specifications: Female 1/2 inch to Male 1/4 inch List of packages: 1 x self-sealing valve do cans 1 x non-self-sealing valve do cans 1 x adapter vacuum pump 1 x adapter refrigerant tank 1 x Reel Remover