About the 6" x 6" Perforated Curved Blade Surface Mount Diffuser w/ Modular Core - Shoemaker 500MA-6X6
Enjoy bargain pricing on the 6" x 6" Perforated Curved Blade Surface Mount Diffuser with Modular Core (Shoemaker 500MA-6X6) while supplies last at PlumbersStock. You need a screwdriver to access the diffuser behind the perforated face. This is a square collar with countersunk mounting holes for a flush installation. The ceiling opening has to be 4" larger than the L x W of the nominal duct size. Shoemaker makes reliable HVAC products that will get the job done.