14"W X 6"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 15.875"W X 7.875"H] 18in diameter actual front end outer dimensions

actual front end outer dimensions are approximately 10 5/8" width X 36 5/8" height

Performance – High diffusion induction rates result in rapid temperature and velocity equalization of the mixed air mass well above the zone of occupancy

Actual Filter Size – 29 3/4"w x 27 3/4" x 1"

Actual Filter Size – 11 3/4"w x 13 3/4" x 1"

this grille seamlessly drops into the designated place

14"W X 6"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 15.875"W X 7.875"H] 18in diameter actual front end outer dimensions+ Product Details Size 14"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 875" width X 5. 875" height. High Quality High quality aluminum with counter sunk screw holes (screws included) and no sharp edges. Design Unrestricted airflow For Your HVAC system noise free components no vibrating louvers etc. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was