38"W X 14"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 39.875"W X 15.875"H] 18" Round Duct Pipe actual front end outer dimensions 4 X 12 Is CRFG2028 Width_14in
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Description
38"W X 14"H [Duct Opening] ALUMINUM RETURN GRILLE Easy Air Flow Linear Bar Grilles [Outer Dimensions: 39.875"W X 15.875"H] 18" Round Duct Pipe actual front end outer dimensions 4 X 12 Is CRFG2028 Width_14in actual front end outer dimensions are approximately 18 5 8" width X 26 5 8" height High Quality – Easy unrestricted airflow for your HVAC system 7 8" margin turnback