TruAire 12 in. Round Air Diffuser 800X12 - The Home Depot

TruAire 12 in. x 12 in. Adjustable 1-Way Wall/Ceiling Register 210VM12X12 - The Home Depot

Venti Air 6 in. Round Butterfly Damper for T-bar, Drop Ceiling, Lay in Diffusers with 6 in. Collar, Black SWTD06

TruAire 12 in. Steel Round Air Diffuser Damper 801X12 - The Home Depot

Everbilt 8 in. Steel Round Diffuser Damper in Brown E80108 - The Home Depot

Everbilt 8 in. Steel Round Diffuser Damper in Brown E80108 - The Home Depot

TruAire 12 in. Round Air Diffuser 800X12 - The Home Depot

TruAire 12 in. Round Air Diffuser 800X12 - The Home Depot

TruAire White Round Ceiling Register 8 inch Round w/Damper White Round Ceiling Vent with Damper These white round registers easily attach to the wall or ceiling. Use as a circular vent or register. The hard to find white round sidewall or ceiling register with butterfly damper is a perfect fit for a 6 inch or 8 inch hole. The round register has a white powder coat finish which gives it a smooth, finished look. Screws are included with the circular vent for easy installation.

Truaire 12 in. Steel Round Air Diffuser Damper, White 801X12

TruAire 12 in. Round Air Diffuser 800X12 - The Home Depot