16"W X 20"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 17.75"W X 21.75"H] Color_White 9% Pure Copper meeting ASTM MFACRA88W1 Condensate Pump Product Details Size 20
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Description
16"W X 20"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 17.75"W X 21.75"H] Color_White 9% Pure Copper meeting ASTM MFACRA88W1 Condensate Pump Product Details Size 20 9% Pure Copper meeting ASTM B280 standards display === 'none' dd