12"W X 25"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 13.75"W X 26.75"H] Flexible Ducts order a 14x14 Product Details Perfect Fit LO612 Compatible With Duct 12in

order a 14x14

+ Product Details Size – 16"w X 30"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 12 5/8" width X 32 5/8" height -

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+ Product Details Perfect Fit & Easy Sizing - Designed for a 24" x 20" OR 20" x 24" duct opening (measured at the opening)

12"W X 25"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 13.75"W X 26.75"H] Flexible Ducts order a 14x14 Product Details Perfect Fit LO612 Compatible With Duct 12in order a 14x14 + Product Details Size – 16"w X 30"h is the size for the duct opening measurement only