20X25X5 (19.75x24.25x4.75) MERV 8 Skuttle Aftermarket Replacement Filter (2 Pack) Aftermarket filter is a replacment for DB-25-20 SKUTTLE filter part # 448-2 Nominal size 20 x 25 x 5. Actual size (H) 19 3/4 x (W) 24 1/4 x (D) 4 3/4. Package contains 2 Filters. This is an aftermarket filter.