16x20x4 MERV 11 Puracell II, Metal Frame Single Header Synthetic MediaPUGSH162041O1 $276.40 SKU: PUGSH162041O1 Back $276.40 Quantity -+ Add to Cart Details 16x20x4 MERV 11 Puracell II, Metal Frame Single Header Synthetic Media DetailsBackDetails16x20x4 MERV 11 Puracell II, Metal Frame Single Header Synthetic MediaSee MoreSee Less