8" x 8" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 4-Way Airflow with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 11" x 11"] 7in diameter Our galvanized duct elbow is

Our galvanized duct elbow is made of high-quality galvanized sheet metal with a crimped round end for easy fitting and secure connection

+ Product Details Size – 24"w X 22"h is the size for the duct opening measurement only

It has an outer surface made of high-quality aluminum foil and an inner surface made of metalized PET with inside high-tensile spring steel wire

Design – Rigid gauge ABS plastic

8" x 8" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 4-Way Airflow with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 11" x 11"] 7in diameter Our galvanized duct elbow is+ 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