20" X 30" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 22 5/8" X 32 5/8"] Material_Aluminum look no further than HVAC Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

look no further than HVAC Premium

+ Product Details Size - 24"w X 30"h is the size for the duct opening measurement only

Actual Filter Size – 29 3/4"w x 15 3/4" x 1"

+ Product Details Size - 32"w X 28"h is the size for the duct opening measurement only

4" X 14" Is The Size For The Duct Opening (floor/vent hole) Measurement Only

20" X 30" Steel Return Air Filter Grille for 1" Filter Fixed Hinged [Outer Dimensions: 22 5 8" X 32 5 8"] Material_Aluminum look no further than HVAC Compatible With Duct 7in Applications This sheet metal DDAG A 1212 look no further than HVAC Premium + Product Details Size 24"w X 30"h is the size for the duct opening measurement only