14" x 22" or 22" x 14" Cube Core Eggcrate Return Air Grille return grille + Product Details Size - Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size - 36"w X 36"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 10 5/8" width X 20 5/8" height

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Actual Front End Outer Dimensions Are 12" Width X 5" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

+ Product Details Size – 14"w X 18"h is the size for the duct opening measurement only

14" x 22" or 22" x 14" Cube Core Eggcrate Return Air Grille return grille + Product Details Size Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size 36"w X 36"h is the size for the duct opening measurement only actual front end outer dimensions are approximately 10 5 8" width X 20 5 8" height