12"W X 6"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 13.875"W X 7.875"H] 14in diameter The total outer size of

The total outer size of this grille is the listed size plus 1

+ Product Details Size – 10" x 20" or 20" x 10" is the size for the duct opening measurement only

including the ability to mount without removing the thermostat when using the ring base

+ Product Details Size - 22"w X 12"h X 2"d (for duct opening measurement only)

Effortless Integration: Crafted for easy connection to supply grilles of drop ceiling T-Bar vent covers

12"W X 6"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 13.875"W X 7.875"H] 14in diameter The total outer size of+ Product Details Size 12"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 875" width X 7. 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