Ceiling Opening: 8-inch by 8-1/2-inch Light Sones: 2-1/2 Cover Diagonal: 14-inch Owner's Manual. Bathroom fan with light; Brushed nickel with swirled marble; 3 metal finishes/glass combinations to choose from; Ul listed for use over shower enclosure/tube with gfci circuit; Ultra quiet technology ... this light/fan? See how there is no sign of the Hunter logo in the center of the glass? Well, when you get the fixture, you'll find a big white logo stenciled onto the glass. You cannot miss it......