18x20x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 17.75 x 19.75) - 3 Pack Return Grille + Product Details Size – 4 X 12 Is CRFG2028 Width_14in

+ Product Details Size – 4"h X 14"h is the size for the duct opening measurement only

+ Product Details Size - 32"w X 24"h is the size for the duct opening measurement only

Achieve the perfect airflow with adjustable control by rotating the middle disk

75" width X 9

We stock hard-to-find sizes and specialize in durable

18x20x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 17.75 x 19.75) 3 Pack Return Grille + Product Details Size – 4 X 12 Is CRFG2028 Width_14in + Product Details Size – 4"h X 14"h is the size for the duct opening measurement only + Product Details Size 32"w X 24"h is the size for the duct opening measurement only