14" x 14" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 4-Way Airflow with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 17" x 17"] Compatible with Duct 8" is fireproof and ensures efficient

is fireproof and ensures efficient thermal performance

+ Product Details Size - 4"w X 30"h is the size for the duct opening measurement only

+ Product Details Cut into any shape & size – With an original dimension of 12" X 5

+ Product Details Size – 3"h X 10"h is the size for the duct opening measurement only

order a 20x14 access panel

14" x 14" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 4-Way Airflow with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 17" x 17"] Compatible with Duct 8" is fireproof and ensures efficient+ 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