Atlas Sound 81-8R Round Hole T-Bar Bridge with a Round Cut-Out for 8-Inch speakers

Locating Tabs Secure the Enclosure to Tile Bridge 81-8S for Easy.In-Ceiling Installation of Speakers and Grilles.Load-Bearing Bridges Eliminate Ceiling Tile Sag by Distributing.Assembly Weight to Ceilings Support System.Choice of Three Models that Accept a Wide Variety of Baffles and Baffle-Enclosure Combinations.Load-bearing bridges eliminate ceiling tile sag by distributing assembly weight...