10"W X 36"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 11.75"W X 37.75"H] White + Product Details Size - 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
+ Product Details Size - 16"w X 6"h is the size for the duct opening measurement only
actual front end outer dimensions are approximately 41
ventilation
our grill boasts an impressive 96% airflow capacity
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10"W X 36"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 11.75"W X 37.75"H] White + Product Details Size 4 X 12 Is CRFG2028 Width_14in + Product Details Size 16"w X 6"h is the size for the duct opening measurement only actual front end outer dimensions are approximately 41