12" X 10" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 14 5/8" X 12 5/8"] sidewall + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size – 22"w X 30"h is the size for the duct opening measurement only

3/8" - 4223 PSI

actual front end outer dimensions are approximately 30 5/8" width X 16 5/8" height -

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

actual front end outer dimensions are approximately 12 5/8" width X 20 5/8" height

12" X 10" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 14 5 8" X 12 5 8"] sidewall + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size – 22"w X 30"h is the size for the duct opening measurement only 3 8" 4223 PSI