Investigator Pen O-Ring Size

[pmek5]

I tried to search this, but could not find anything. Can someone tell me the O-Ring size for the one that comes with the pen to help keep the cap on snug. Thanks for your help.

 

[Maprik]

From my local Ace Hardware...


Untitled by GermoneGold, on Flickr

 

[pmek5]

Wow, thats covers it. Thanks Maprik.