OF
Well-Known Member
AFAIK the stem covers on PV site are from MFLB covers for AA batteries that have the label removed to work with the MFLB, the covers stop it from shorting.
But do know that it is not recommended to put the cap on when the stem is still hot
The typical caps are common vinyl caps, available lots of places. I get mine from McMaster Carr:
http://www.mcmaster.com/#catalog/120/3795/=qqxdmp
You want the ones for 1/2 to 9/16 inch. Notice there's a high temperature version available. It can be put on hot without trouble, although for normal use it's stiffer and therefore not as nice.
In the funny way the world often works the covers for lip balm like "Chapstic" also work......
OF