Monitor 10A grills fit 10B's?

[avguytx]

There are a pair of Monitor 10A grills (http://cgi.ebay.com/Polk-Monitor-10A-Speaker-Grills-Excellent-Condition_W0QQitemZ150092222422QQihZ005QQcategoryZ 71571QQssPageNameZWDVWQQrdZ1QQcmdZViewItem) on Ebay right now and I need a set for my 10B's. Anyone out there know if they are interchangeable? If they are, that would save some work for me!

Thanks!