rear shocks air kit

Does anyone know where I can get the air kit for the rear shocks so that I can put air myself into the shocks and not use the compressor. I contacted a seller on eBay that was selling some sort of kit but he told me that I will need a kit with some screws that mount onto the shock. I got Monroe shocks so I went to napa to see if they got the kit but they had the same kit as eBay. If you can post a part # or a picture that would be awesome.

Thanks
Al

This is the ebay auction with the ait kit. 110069190291 http://pics.ebaystatic.com/aw/pics/globalAssets/rtCurve.gif http://pics.ebaystatic.com/aw/pics/s.gif