About the 15" x 15" Perforated Curved Blade Surface Mount Diffuser w/ Adjustable Blades, 4-Way, White - Shoemaker 500CB40-15X15
Shop and save on the 15" x 15" Perforated Curved Blade Surface Mount Diffuser with Adjustable Blades, 4-Way in soft white (Shoemaker 500CB40-15X15) from the pros at PlumbersStock. One great feature is that the nylon bushing reduce noise from rattling. The 3/16" perforated holes are staggered with 1/4" centers. Please be aware that ceiling opening must be 4” larger in length and width than the nominal duct size. Shoemaker has earned their reputation as a manufacturer by making quality solutions.