34" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Powder-Coat Actual Filter Size – 9 VF-WB 2x12 PB our damper helps create 6" Round Duct Pipe

Actual Filter Size – 9 3/4"w x 31 3/4" x 1"

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 24" OR 24" X 16" duct opening (measured at the opening)

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Actual Filter Size – 17 3/4"w x 15 3/4" x 1"

+ Product Details Size - 4"w X 34"h is the size for the duct opening measurement only

34" x 32" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Powder Coat Actual Filter Size – 9 VF WB 2x12 PB our damper helps create 6" Round Duct Pipe Actual Filter Size – 9 3 4"w x 31 3 4" x 1" + Product Details Perfect Fit & Easy Sizing Designed for a 16" x 24" OR 24" X 16" duct opening (measured at the opening)