14" X 18" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 16 5/8" X 20 5/8"] Color_R-8.0 Pink /* slightly looser */ color:

/* slightly looser */ color: #333

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

Filter Size - 13

Choose from a palette of four elegant colors – white

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14" X 18" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 16 5/8" X 20 5/8"] Color_R-8.0 Pink /* slightly looser */ color:+ Product Details Size 14"w X 18"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 16 5 8" width X 20 5 8" height Actual Filter Size 13 3 4"w x 17 3 4" x 1" High Quality High quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Installation Location Sidewall and ceiling Design Removable door face for easy filter change & cleaning uses a 1" thick filter.