36" X 30" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged- [Outer Dimensions: 38 5/8" X 32 5/8"] Brown Design – Fixed Hinged for Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

Design – Fixed Hinged for easy filter change & cleaning - uses a 1" thick filter

+ Product Details Size – 10" x 30" or 30" x 10" is the size for the duct opening measurement only

+ Product Details Size - 26"w X 24"h is the size for the duct opening measurement only

+ Product Details Size - 30"w X 36"h is the size for the duct opening measurement only

+ Product Details Size - 8"w X 8"h is the size for the duct opening measurement only

36" X 30" Steel Return Air Filter Grille for 1" Filter Fixed Hinged [Outer Dimensions: 38 5 8" X 32 5 8"] Brown Design – Fixed Hinged for Compatible With Duct 7in Applications This sheet metal DDAG A 1212 Design – Fixed Hinged for easy filter change & cleaning uses a 1" thick filter + Product Details Size – 10" x 30" or 30" x 10" is the size for the duct opening measurement only