About the 12" x 12" Perforated Curved Blade Surface Mount Diffuser w/ Adjustable Blades, 4-Way, White - Shoemaker 500CB40-12X12
Savings available on the 12" x 12" Perforated Curved Blade Surface Mount Diffuser with Adjustable Blades, 4-Way in soft white (Shoemaker 500CB40-12X12) at PlumbersStock online. 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 is a trusted name for good reason. They have earned their reputation with quality manufacturing.