30"W X 6"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 31.75"W X 7.75"H] Material_Aluminum + Product Details Size – 10in diameter 75 Plenum Box Depth 1267FLR90

+ Product Details Size – 16" x 20" or 20" x 16" is the size for the duct opening measurement only

ensuring that you find the perfect fit for your ventilation needs

actual front end outer dimensions are approximately 31

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you have 16 different varieties to choose from

30"W X 6"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 31.75"W X 7.75"H] Material_Aluminum + Product Details Size – 10in diameter 75 Plenum Box Depth 1267FLR90 + Product Details Size – 16" x 20" or 20" x 16" is the size for the duct opening measurement only ensuring that you find the perfect fit for your ventilation needs