10" x 10" 4-WAY SUPPLY GRILLE - DUCT COVER & DIFFUSER - LOW NOISE - For Ceiling - With Opposing Damper Blades Filter Grille Rigid Built For External Use–

Rigid Built For External Use– The sturdy and rigid design features noise free components that eliminates vibration and excess noise to the louvers

actual front end outer dimensions are approximately 38 5/8" width X 18 5/8" height -

Actual Filter Size – 33 3/4"w x 17 3/4" x 1"

Actual Filter Size – 23 3/4"w x 29 3/4" x 1"

10" x 10" 4-WAY SUPPLY GRILLE - DUCT COVER & DIFFUSER - LOW NOISE - For Ceiling - With Opposing Damper Blades Filter Grille Rigid Built For External Use–+ Product Details Size 10" X 10" 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