16" X 36" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 18 5/8" X 38 5/8"] w6h6 5" - SEE BELOW IN Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

5" - SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLE

+ Product Details Size – 10" x 10" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 26 5/8" width X 32 5/8" height

actual front end outer dimensions are approximately 20 5/8" width X 16 5/8" height

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

16" X 36" Steel Return Air Filter Grille for 1" Filter Fixed Hinged [Outer Dimensions: 18 5 8" X 38 5 8"] w6h6 5" SEE BELOW IN Compatible With Duct 7in Applications This sheet metal DDAG A 1212 5" SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLE + Product Details Size – 10" x 10" is the size for the duct opening measurement only