25" x 20" Aluminum Return Grille - Easy Airflow - Linear Bar Grilles 8" Round Duct Pipe + Product Description Ventilate your Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Description Ventilate your home or commercial space with our Aluminum Outdoor Weatherproof Louvers

+ Product Details Size – 10"w X 4"h is the size for the duct opening measurement only

Actual Filter Size – 19 3/4"w x 33 3/4" x 1"

+ Product Details Size – 12" round duct opening-

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25" x 20" Aluminum Return Grille Easy Airflow Linear Bar Grilles 8" Round Duct Pipe + Product Description Ventilate your Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Description Ventilate your home or commercial space with our Aluminum Outdoor Weatherproof Louvers + Product Details Size – 10"w X 4"h is the size for the duct opening measurement only