Cart Continue shopping “20x20x4 (3-5/8) Pleated AC Filter Furnace Filter NORDIC” has been added to your cart. Continue shopping “20x25x4 (3-5/8) Pleated AC Filter Furnace Filter NORDIC” has been added to your cart. Remove item Thumbnail image Product Price Quantity Subtotal × 20x20x4 (3-5/8) Pleated AC Filter Furnace Filter NORDIC $36.95 20x20x4 (3-5/8) Pleated AC Filter Furnace Filter NORDIC quantity $36.95 × 20x25x4 (3-5/8) Pleated AC Filter Furnace Filter NORDIC $38.95 20x25x4 (3-5/8) Pleated AC Filter Furnace Filter NORDIC quantity $38.95 Coupon: Apply coupon Update cart Cart totals Subtotal $75.90 Tax $0.00 Total $75.90 Proceed to checkout — OR —