ITEM NAME:Hardware Oiler Lubricator of 1/4" In-Line Oiler Lubricator for Pneumatic Tool FT Features: Used to connect the pneumatic pipeline between the tool and the air,compressor, automatic oiling. With the filter oil water function and automatic oil supply function,prevent pneumatic tools do not refuel. Easy to connect all kinds of pneumatic tools. Specifications: Material:copper Color:gold Length: 55mm(2.24"ï ¼â€° diameter: 30mmï ¼Ë†1.18"ï ¼â€° Connector size: 1/4 internal thread +1 / 4 external thread Package include: 1x Lubrication for Air Tool.Used to connect the pneumatic pipeline between the tool and the air,compressor, automatic oiling. Easy to connect all kinds of pneumatic tools. Connector size: 1/4 internal thread +1 / 4 external thread.