16"W X 10"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 17.875"W X 11.875"H] Color_Aluminum display = isOpen

display = isOpen

Actual Filter Size – 11 3/4"w x 9 3/4" x 1"

For 10" Round Duct Opening - Spiral or Flex

Actual Filter Size – 31 3/4"w x 13 3/4" x 1"

+ Product Details Size – 18" Wooden Corner Baseboard Grille

16"W X 10"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 17.875"W X 11.875"H] Color_Aluminum display = isOpen+ Product Details Size 16"w X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 875" width X 11. 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