I get that, I just mean that people on this board span the globe and there are many Euro models in the US, so it's not always clear what everyone is talking about. And now maybe the California model is yet another difference to add to the mix?

I did find that thread I was reading through:

Where to buy OM617 IP Valve Delivery Seals

Interesting to me is the fact that he called the shop, gave them the pump numbers, and still got the wrong ones. That's another reason I like the approach of "X pump takes these, Y pump takes those, confirm the dimensions when you order them from the place of your choice."

-Rog