I am trying to source on today and have a few "options" to try, but does anyone actually know what the internal Diameter and cross sectional surface area is for it ?
I couldn't find my Verniers last night so had to use a ruler for the hole size and it appears to be Approx 13mm. "O" rings are ordered with Internal Diameter though
so I have been working out rubber thickness using Pi X r (squared) multiplying by 4 and deducting this from the External Diameter to produce the Internal Diameter.
As I cannot confirm the E/D 100% I cannot be sure I am close enough so any help would be greatly appreciated.
I am going out to get it in 5 hrs from now, so time is short
