I have two SX260's that will not start up right now, both have several bulging capacitors many with brown residue on top of them. All of the problem capacitors are labeled as 6.3v 2200 uF, is there an easy way to find the diameter and height without taking the capacitor off and measuring it?

Now I looked at the stock on this site, and it seems the only capacitors that match the specs I need all have a 10mm diameter and 20mm size, would it be safe to assume this is the size I need? If so should I go with the Rubycon or Samxon? Thanks for such a helpful website!