4" or 8" widespread faucet?

Your sink should be one or the other CC Means center to center. 4 inch is more common than 8 inch. I have not seen one that is both. But that doesn't mean there isn't one out there. Take a tape and measure the holes. If you think it is 3 7/8 or 4 1/8 it is 4" cc. They are not always perfect, and it is sometimes difficult to judge the center. You can just "eyeball it" because faucets have a small bit of "play" in them. But not 4" worth so get the right one. 4 or 8 It should be clearly marked on the package.