6" x 6" [Duct Opening] Flat Plaque Aluminum Ceiling Supply Diffuser Duct Cover with Lever-Operated Damper for Air Flow Control [Outer Dimensions: 9" x 9"] Aluminum - Cube Core For 14" Round Duct Opening Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

For 14" Round Duct Opening - Spiral or Flex

+ Product Details Size – 26"w X 22"h is the size for the duct opening measurement only

75" Width X 37

Actual Filter Size – 29 3/4"w x 5 3/4" x 1"

+ Product Details Size - 32"w X 22"h is the size for the duct opening measurement only

6" x 6" [Duct Opening] Flat Plaque Aluminum Ceiling Supply Diffuser Duct Cover with Lever Operated Damper for Air Flow Control [Outer Dimensions: 9" x 9"] Aluminum Cube Core For 14" Round Duct Opening Compatible With Duct 7in Applications This sheet metal DDAG A 1212 For 14" Round Duct Opening Spiral or Flex + Product Details Size – 26"w X 22"h is the size for the duct opening measurement only