6" x 6" [Duct Opening] Ceiling Supply Diffuser Vent Cover – Corner Direction with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 9" x 9"] 12" Round Duct Pipe Design – The stick-on straight

Design – The stick-on straight take-off duct is designed to connect a square duct to a round duct

If your opening is 14" tall by 20" wide

+ Product Details Size – 22"w X 30"h is the size for the duct opening measurement only

+ Product Description Elevate your space with our elegant Ceiling Grille Diffuser

6" x 6" [Duct Opening] Ceiling Supply Diffuser Vent Cover – Corner Direction with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 9" x 9"] 12" Round Duct Pipe Design – The stick-on straight+ Product Details Size Refers to duct opening only. The face frame extends roughly 1. 5" on each side. Do not measure the overall grille for sizing. Design All aluminum frame and back blades. Rustproof and built to last in moisture prone environments. Quiet Airflow Opposing blade damper design reduces vibration and noise for smoother air distribution. Clean Finish White powder coated surface resists chips, scratches, and discoloration over time. Easy