28"W X 20"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 29.75"W X 21.75"H] w8h8 Its polished pre-finish gloss varnish Product Details Size 30 LO1828 12in diameter

Its polished pre-finish gloss varnish not only adds to its appeal but also ensures easy installation

please note that the total outer dimensions of the grille measure 7" in diameter

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Slots are angled to diversify the airflow in 2 way direction

+ Product Details Size - 24"w X 4"h is the size for the duct opening measurement only

28"W X 20"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 29.75"W X 21.75"H] w8h8 Its polished pre finish gloss varnish Product Details Size 30 LO1828 12in diameter Its polished pre finish gloss varnish not only adds to its appeal but also ensures easy installation please note that the total outer dimensions of the grille measure 7" in diameter