18"W X 30"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 19.875"W X 31.875"H] 3-Way or 4-Way with actual outer dimensions of 4 X 12 Is CRFG2028 Width_14in

with actual outer dimensions of 26

+ Product Details Size - 22"w X 34"h X 2"d (for duct opening measurement only)

at predicted low air motion 35 fpm in the zone of occupancy

Each grille is carefully packaged with cardboard backing to prevent damage during shipment

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 14" or 14" x 8" duct opening (measured at the opening)

18"W X 30"H [Duct Opening] ALUMINUM RETURN GRILLE EASY AIR FLOW LINEAR BAR GRILLES [OUTER DIMENSIONS: 19.875"W X 31.875"H] 3 Way or 4 Way with actual outer dimensions of 4 X 12 Is CRFG2028 Width_14in with actual outer dimensions of 26 + Product Details Size 22"w X 34"h X 2"d (for duct opening measurement only)