12"W X 20"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 13.75"W X 21.75"H] with filter [Outer Dimensions: 38 Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

[Outer Dimensions: 38

PROTECTION - Provides the ultimate defense against any kind of weather

+ Product Details Size - 22"w X 32"h X 2"d (for duct opening measurement only)

High Quality Aluminum – The premium durable aluminum will never rust and it will never wear through leaving the material with an elegant

+ Product Details Perfect Fit & Easy Sizing - Designed for a 28" x 32" OR 32" x 28" duct opening (measured at the opening)

12"W X 20"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 13.75"W X 21.75"H] with filter [Outer Dimensions: 38 Compatible With Duct 7in Applications This sheet metal DDAG A 1212 [Outer Dimensions: 38 PROTECTION Provides the ultimate defense against any kind of weather