Fork seals & O Rings

[viclioce]

OK, question. I'm ordering a set of fork seals for the RT forks. The oil seals are listed as 30mm. However neither Strictly Hodaka nor Hodaka-parts.com show the upper or lower O Rings available. Can anyone tell me if the O Rings are also 30mm or if they are a different size(s)? Is the upper & lower O Ring the same size or are they different sizes? I'm guessing an O Ring is an O Ring so I can most likely get them locally. So please advise on the sizes. Thanks! ; D Victor