Source for replacement "seals" / "Gaskets" for Mamiya C330 focusing screens

[Todd Barlow]

I have two C330 focus screens and they rattle within the metal frame (screws are all tight).
It seems that the seals / gaskets have lost their ability to hold the actually screen in place.
I see that US Camera has a product for C330F focus screens but not sure they would be the same as for the C330 focus screens I have.

How do you tell a C330 focus screen from one for a C330F?

Any advice or feedback would be great.
(I have reached out to US Camera but have not heard back as of yet)

Thanks

Todd

 

[mrosenlof]

330 and 330F screens are the same. The 330S has a different screen.