48"W X 24"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 49.875"W X 25.875"H] White For 8" Round Duct Opening Product Details Size 14 RG1612AL Height_16in

For 8" Round Duct Opening - Spiral or Flex

+ Product Details Size – 18" x 32" or 32" x 18" is the size for the duct opening measurement only

very easy to do

Installation – Easy drop ceiling installation

+ Product Details Size – 12" X 2" is the size for the duct opening (floor/vent hole) measurement only

48"W X 24"H [Duct Opening] ALUMINUM RETURN GRILLE Easy Air Flow Linear Bar Grilles [Outer Dimensions: 49.875"W X 25.875"H] White For 8" Round Duct Opening Product Details Size 14 RG1612AL Height_16in For 8" Round Duct Opening Spiral or Flex + Product Details Size – 18" x 32" or 32" x 18" is the size for the duct opening measurement only