14" X 6" [Duct Opening] 1-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 15.75"W X 7.75"H] Aluminum Bar + Product Details Size - Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size - 20"w X 30"h is the size for the duct opening measurement only

HVAC Premium has been providing superior quality service for many years

+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 10" duct opening (measured at the opening)

ensuring it arrives at your home in perfect condition

Multi-shutter damper with handle operator to adjust air flow

14" X 6" [Duct Opening] 1 Way Air Vent Adjustable Aluminum Curved Blades Integral Multi Shutter Damper HVAC Diffuser [Outer Dimensions: 15.75"W X 7.75"H] Aluminum Bar + Product Details Size Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size 20"w X 30"h is the size for the duct opening measurement only HVAC Premium has been providing superior quality service for many years