Air Filter Features: Electrostatic, Pleated Pack Size: 2 Contaminants Captured: Bacteria, Dust Mites, Dust/Lint, Mold Spores, Pet Dander, Pollen Filter Frame Material: Cardboard Filter Material: Electrostatically Filter Performance Rating (FPR): 6-7 Better Longevity (Months): 3 Merv Rating (Minimum Efficiency Reporting Value): Merv 11 Air Filter Type: Electrostatic Actual Product Depth (In.): 0.75 Actual Product Height (In.): 24.75 Actual Product Width (In.): 19.75 Air Filter Depth (In.): 1 Air Filter Height (In.): 25 Air Filter Size: 20×25 Air Filter Width (In.): 20