12x24x4 MERV 11 Puracell II, Plastic Frame Single Header, Synthetic MediaPUPFSH122441O $211.52 SKU: PUPFSH122441O Back $211.52 Quantity -+ Add to Cart Details 12x24x4 MERV 11 Puracell II, Plastic Frame Single Header, Synthetic Media DetailsBackDetails12x24x4 MERV 11 Puracell II, Plastic Frame Single Header, Synthetic MediaSee MoreSee Less