The Saucer vapor cap is identical to the hi-temp caps in use and function, and can be used on all our pipe stems and WPAs. It's larger size and saucer-like shape partially shield your fingers from the hot metal parts, providing an extra layer of protection compared to our other caps.
The cap must be modified to be used on the Vaporscope stem. We will do that if you order this cap and the Vaporscope stem together. If you are ordering a Saucer cap to go with a Vaporscope stem that you have, please note that in the comment section and we will modify the cap to fit.