4"W X 26"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 5.75"W X 27.75"H] Aluminum Bar display === '') { dd 4 X 12 Is CRFG2028 Width_14in

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You may think of grilles and registers as a generic component of the ventilation system in your house

customize cuts and flares as needed

+ Product Details Size - 18"w X 30"h is the size for the duct opening measurement only

Design – Premium plated finish and modern contempo design forming a luxurious & impressive piece for your home

4"W X 26"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 5.75"W X 27.75"H] Aluminum Bar display === '') { dd 4 X 12 Is CRFG2028 Width_14in display === '') { dd You may think of grilles and registers as a generic component of the ventilation system in your house