Amflo 1212 1/4" NPT Air Tool Automatic In-Line Oiler

• Lubricator In-Line 1/4" NPT
• Automatic in-line oiler
• Maximum line pressure 175 PSI
• 1/4" NPT

It might be a little more money, but I have never broke one. Just don't lose the cap as there are no parts available. A great way to save your air tools from failure.