Holder size on One55's?

[Neo5370 132]

Anyone know what size holder comes on a senior 6EE versus a junior 5.5EE? Only reason I ask is I think the One90's had 246's maybe, and the 703's I'm using now have a 254 holder. Thanks! No time to make it to a LHS tonight and thought someone might give me a quick answer.

[VakarLajos 5]

One55 6 2E = 254

I don't have a One55 on hand, but my XXX 5.5 2E are a 254 as well.