So I email the address on the website (jett2006@jettengineering.com) and get this response:
Greetings:
Dear annoying spam merchants:
Please REMOVE this and any references to jettengineering.com from your list. It is a dead address, and your spam is unsolicited, tasteless and otherwise annoying.
To our customers:
Our email addresses have changed effective Januar 2008.
Please visit jettengineering.com for more information, and we appreciate your patience and support as we make this effort to improve our customer service.
What the heck?