Product Features:
- Nominal Size: 20x25x4; Actual Size: 19.5″x24.5″x3.75″
- MERV 8, comparable with MPR 600 & FPR 5
- Filters particles like lint, dust mites, spores, and pollen
- Easy installation; replace every 3-6 months
- 100% synthetic electrostatic media for high efficiency and low airflow resistance
- Made by Filtration Group, a leader in filtration solutions