Actual Size: 20.25 x 25.38 x 5.25. Brand: Accumulair. 20x25x5 Payne P102MF20 compatible whole house filters, specifically engineered to substitute for the original manufacturer Payne P102MF20 air filters. Fully assembled with no forming or combs required. MERV rated to ASHRAE 52.2 test specifications ensuring particle capture as good or better than the original brand Payne P102MF20 filter. Note: Sample filter picture as shown is not the actual dimensions and is there to show configuration purposes. Name brands and Payne P102MF20 part numbers are listed for filter substitution identification only.