6" x 8" or 8" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter - Aluminum - White [Outer Dimensions: 8.5" X 10.5"] Return Grille + Product Details Size – 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
+ Product Details Size – 12"w X 8"h is the size for the duct opening measurement only
with actual outer dimensions of 30
but still very thin
Actual Filter Size – 15 3/4"w x 24 3/4" x 1"
actual front end outer dimensions are 9
6" x 8" or 8" x 6" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum White [Outer Dimensions: 8.5" X 10.5"] Return Grille + Product Details Size – 4 X 12 Is CRFG2028 Width_14in + Product Details Size – 12"w X 8"h is the size for the duct opening measurement only with actual outer dimensions of 30