Top Gun Aircraft has them on sale right now for $139.95. Visit http://www.tgajets.com/

Make sure you fix the pressure nipple before flying. The fitting is tapped into thin walled aluminum, and the dummies use non heat resistant epoxy to hold it in place. Some replace the epoxy with JB Weld. I used Alumiweld to build up a boss on the pipe, then drilled and tapped it. ASo far I am please with the pipe's performance.

Joe