20x26x5 (20x25.88x4.88) MERV 8 Aftermarket White Rodgers Replacement Filter (2 Pack) White-Rodgers Part # F825-0549 and FR2000. Nominal size 20 x 26 x 5. Actual size 20 x 25 7/8 x 4 7/8. Package contains 2 Filters. This is an aftermarket filter.