Therwen 2 Set 6 Inch Round Vent Cover Ceiling Diffuser HVAC Vent Duct Cover Replacement with Steel Butterfly Damper Fitting in 6 Inch Duct, Outer Dimensions: 9-15/16″

Efficient Airflow: the round vent cover adopts concentric rings design, improving air circulation, allowing to deflecting the air in a 360 degree pattern, designed for your ventilation system; Ceiling diffuser has both functionality and control, ideal for residential and commercial occasions
Fit for 6 Inch Duct: the opening of air duct vent cover measures about 6 inch, the whole outer diameter of the cover is about 9-15/ 16 inch, suitable for 6 inch vent duct opening, please check your duct size information before ordering
Sturdy and Reliable Material: our ceiling diffuser and butterfly damper are made of quality steel, with good durability and performance, reliable and safe to use, will not break or fade easily, serviceable for a long time
Package Includes: our package includes 2 round ceiling diffusers and 2 steel butterfly dampers, offering 2 set for you to meet your needs, widely applicable to ceiling vent accessories replacement of household industry, large scale shopping malls and more
Easy Installation: our HVAC ceiling diffuser is easy to install, you can quickly and convenient to install with screws included, without needing other tools, offering you a hassle free installation experience