14"w X 8"h [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 9.75"H] Filter Grille 10"w X 6"h Is The d Product Details Size The 170B 16X16 FBA

10"w X 6"h Is The Size For The Duct Opening Measurement Only

Actual Filter Size – 13 3/4"w x 27 3/4" x 1"

+ Product Details Size – 16"w X 14"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 24" x 22" OR 22" x 24" duct opening (measured at the opening)

+ Product Details Heavy-Duty Steel Construction - Made from 20-gauge steel for superior strength and durability

14"w X 8"h [Duct Opening] 1 Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 9.75"H] Filter Grille 10"w X 6"h Is The d Product Details Size The 170B 16X16 FBA 10"w X 6"h Is The Size For The Duct Opening Measurement Only Actual Filter Size – 13 3 4"w x 27 3 4" x 1"