6" x 6" [Duct Opening] Flat Plaque Aluminum Ceiling Supply Diffuser Duct Cover with Lever-Operated Damper for Air Flow Control [Outer Dimensions: 9" x 9"] 6" Round Duct Pipe line-height: 20px

line-height: 20px

+ Product Details Perfect Fit & Easy Sizing - Designed for a 26" x 12" OR 12" x 26" duct opening (measured at the opening)

It serves as a main duct or plenum

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this fitting is perfectly compatible with 12-inch ducts

6" x 6" [Duct Opening] Flat Plaque Aluminum Ceiling Supply Diffuser Duct Cover with Lever-Operated Damper for Air Flow Control [Outer Dimensions: 9" x 9"] 6" Round Duct Pipe line-height: 20px+ 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