20" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_Red Oak Wood actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

actual front end outer dimensions are approximately 16 5/8" width X 10 5/8" height

actual front end outer dimensions are 9

+ Product Details Size - 14"w X 10"h is the size for the duct opening measurement only

+ Product Details Size - 16"w X 22"h is the size for the duct opening measurement only

+ Product Details Size – 8" x 20" or 20" x 8" is the size for the duct opening measurement only

20" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Color_Red Oak Wood actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG A 1212 actual front end outer dimensions are approximately 16 5 8" width X 10 5 8" height actual front end outer dimensions are 9