25" X 16" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 27 5/8" X 18 5/8"] w34h34 } /* CONTENT SPACING */ Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

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actual front end outer dimensions are approximately 26 5/8" width X 18 5/8" height

Insulation – A thick blanket of fiberglass insulation provides you with an R-Value of 8

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

Adjustable airflow control - by rotating the middle disk

25" X 16" Steel Return Air Filter Grille for 1" Filter Fixed Hinged [Outer Dimensions: 27 5 8" X 18 5 8"] w34h34 } * CONTENT SPACING * Compatible With Duct 7in Applications This sheet metal DDAG A 1212 } * CONTENT SPACING * #hvac product accordion actual front end outer dimensions are approximately 26 5 8" width X 18 5 8" height