Manufacturers usually have an entire range of of electrolytic capacitors and as I tell my customers, each one is best at a certain job.
Nichicon for example has a dizzying array of electrolytic series that seems to be getting larger all the time.
They have a nice selector here:
http://www.nichicon.co.jp/english/produ ... index.html
Panasonic's is here:
http://industrial.panasonic.com/ww/prod ... m-cap-lead
And Elna's is here:
http://www.elna.co.jp/en/capacitor/alum ... eries.html
United's is less simple. Use the "Group Charts" download for a similar listing as the above links:
http://www.chemi-con.com/products
Cheers!