Are all blender rubber rings the same size?
Hello, Georgia -
No, there can be variations in size with the rubber sealing o-rings / gaskets for blenders.
I have no idea where you reside (in what country), so I cannot refer you to a bricks & mortar store or an online vendor to find the right replacement gasket.
Fixya.com receives questions from people world wide. I am answering from the USA.
Instead, I suggest you use your favorite search engine (Google, Yahoo, Bing, DuckDuckGo, etc.) and the following search strategy:
blender gasket replacement
The search results will list businesses selling a variety of replacement gaskets for specific brands.
on May 29, 2018