Description
6" x 6" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 2 Way Airflow with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 9" x 9"] d Suitable for medium pressure applications MFRG2420W HP Suitable for medium pressure applications + Product Details Size – Stick on collar is 8" and it is compatible with duct 8" Always measure the actual opening in your ceiling or wall accordion title { font size: 18px