34" X 36" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 36 5/8" X 38 5/8"] Color_Aluminum actual front end outer dimensions 14" Round Duct Pipe FR M 414 White For 10 duct opening

actual front end outer dimensions are approximately 22 5/8" width X 32 5/8" height

Actual Filter Size – 19 3/4"w x 24 3/4" x 1"

+ Product Details Size – 14"w X 20"h is the size for the duct opening measurement only

Efficient Airflow Design: The slots are meticulously angled to diversify airflow in two directions

3/4" - 2981 PSI

34" X 36" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 36 5 8" X 38 5 8"] Color_Aluminum actual front end outer dimensions 14" Round Duct Pipe FR M 414 White For 10 duct opening actual front end outer dimensions are approximately 22 5 8" width X 32 5 8" height Actual Filter Size – 19 3 4"w x 24 3 4" x 1"