28"W X 16"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 29.875"W X 17.875"H] Floor Grille Toe Space also referred to as T-Bar

also referred to as T-Bar or Lay-in system

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+ Product Details Perfect Fit & Easy Sizing - Designed for a 28" x 14" OR 14" x 28" duct opening (measured at the opening)

875" width X 19

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

28"W X 16"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 29.875"W X 17.875"H] Floor Grille Toe Space also referred to as T-Bar+ Product Details Size 28"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 29. 875" width X 17. 875" height. High Quality High quality aluminum with counter sunk screw holes (screws included) and no sharp edges. Design Unrestricted airflow For Your HVAC system noise free components no vibrating louvers etc. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was