Measuring guide rings

[slowworm]

I need a bit of help.  I broke a ring on a rod and I need to replace it.  This isn't my first guide replacement.  The issue I have is that the last time this happened (about 20 years ago!) I took the ring down to then local tackle dealer and found a match.  Now I need to order one instead, because tackle shops like that are all gone. 

 

I've found a likely match on mudhole, but I'm wondering how to measure the ring size.  Do I measure the ID, the OD of some other thing to size the ring.

 

Thanks

 

J.

[Delaware Valley Tackle]

Guides are sized by the ID of the frame ring which is the same as the OD of the ceramic insert. 

[Jigfishn10]

This is a downloadable chart that may help.

 

https://www.jannsnetcraft.com/Content/Parts_Sizing.htm

[slowworm]

Thanks all for the help.  

 

J.