O ring measure
In measuring for a new Oring, do you measure from the inside, outside or middle? I'm looking at my water filter and need a new ring. The ring is about 4" but 1/8" thick. So that would be about .25 ...
Forum Discussion
If you look on the internet you will see they list all 3 dimensions. I.D., O.D.& dia of the material i.e. O.D minus I.D.
