10"W X 18"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 11.875"W X 19.875"H] Powder-Coat Width vs Height Compatible with Duct 4" Product Details Size 32 LO246

Width vs Height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 18" x 22" OR 22" x 18" duct opening (measured at the opening)

actual front end outer dimensions are approximately 14 5/8" width X 20 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 24" x 26" OR 26" x 24" duct opening (measured at the opening)

+ Product Details Size – 14"w X 24"h is the size for the duct opening measurement only

10"W X 18"H [Duct Opening] ALUMINUM RETURN GRILLE EASY AIR FLOW LINEAR BAR GRILLES [OUTER DIMENSIONS: 11.875"W X 19.875"H] Powder Coat Width vs Height Compatible with Duct 4" Product Details Size 32 LO246 Width vs Height + Product Details Perfect Fit & Easy Sizing Designed for a 18" x 22" OR 22" x 18" duct opening (measured at the opening)