14"W X 16"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 15.875"W X 17.875"H] Color_Black actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

actual front end outer dimensions are 25" width X 25" height

+ Product Description Introducing our 18" Wooden Corner Baseboard Grille - a sophisticated addition to elevate your HVAC system and interior decor

+ Product Details Size – 12"w X 4"h is the size for the duct opening measurement only

+ Product Details Size - 28"w X 36"h is the size for the duct opening measurement only

Actual Filter Size – 29 3/4"w x 23 3/4" x 1"

14"W X 16"H [Duct Opening] ALUMINUM RETURN GRILLE EASY AIR FLOW LINEAR BAR GRILLES [OUTER DIMENSIONS: 15.875"W X 17.875"H] Color_Black actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG A 1212 actual front end outer dimensions are 25" width X 25" height + Product Description Introducing our 18" Wooden Corner Baseboard Grille a sophisticated addition to elevate your HVAC system and interior decor