6" x 6" 4-WAY SUPPLY GRILLE - DUCT COVER & DIFFUSER - LOW NOISE - For Ceiling - With Opposing Damper Blades 6" Round Duct Pipe Actual Filter Size – 9

Actual Filter Size – 9 3/4"w x 35 3/4" x 1"

4" X 12" Is The Size For The Duct Opening (floor/vent hole) Measurement Only

ensuring optimal circulation throughout your space

And is classified as Class 1 Fire Proof - B1

+ Product Details Size - 14"w X 28"h is the size for the duct opening measurement only

6" x 6" 4-WAY SUPPLY GRILLE - DUCT COVER & DIFFUSER - LOW NOISE - For Ceiling - With Opposing Damper Blades 6" Round Duct Pipe Actual Filter Size – 9+ Product Details Size 6" X 6" is the size for the duct opening measurement only, actual front end outer dimensions are 3". Design Equipped with lever for full airflow control; back blades made of black plastic for reduced air noise and discreet appearance; "Opposing" back blades, ensuring they don't overlap, provide precise damper control and superior air dispersion. High Quality Aluminum The premium durable aluminum will never rust and it will never