We stock all versions of Dominator and American Turbine Bowls. 10.25" Bowls are available with the following options
1.  Extrude honed finish proven to improve flow.
 
Notes: 
*All American Turbine bowls are 10.50" center
*Dominators can be either 10.25" or 10.50"
*All Berkeley pumps are 10.25" center