6.5" Grills in need of some!

Hey guys, well I just installed some new panels in my boat with 6.5" alpine components. Now they look awesome but they are very open to the elements the way the stock grills are. I was wondering if anyone knew of a place to purchase marine grills or just solid fine mesh black ones? ALso I think I remember a spray of some sort that you can spray onto the speaker to protect it? thanks