20" X 14" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included * [Outer Dimensions: 22 5/8" X 16 5/8"] Color_Aluminum Horizontal performance assures confident use Suitable for all AC 8in diameter 12125SDCLNGBX

Horizontal performance assures confident use of cooling temperature differential of 30 degrees Fahrenheit and greater

Actual Filter Size – 17 3/4"w x 25 3/4" x 1"

actual front end outer dimensions are approximately 28 5/8" width X 12 5/8" height

Actual Filter Size – 23 3/4"w x 29 3/4" x 1"

20" X 14" Steel Return Air Filter Grille for 1" Filter Removable Frame * Filter Included * [Outer Dimensions: 22 5 8" X 16 5 8"] Color_Aluminum Horizontal performance assures confident use Suitable for all AC 8in diameter 12125SDCLNGBX Horizontal performance assures confident use of cooling temperature differential of 30 degrees Fahrenheit and greater Actual Filter Size – 17 3 4"w x 25 3 4" x 1"