Flanders 16 in. W X 20 in. H X 5 in. Synthetic 8 MERV Pleated Air Filter

Meet the Flanders 16x20x5 Synthetic 8 MERV Pleated Air Filter—the practical mid-range solution for cleaner indoor air in homes and light commercial spaces. Built with a sturdy cardboard frame, internal metal mesh support, and pleated synthetic media, this filter is designed to balance filtration performance with reliable airflow.

With an 8 MERV rating, it targets a broad spectrum of common indoor pollutants. It effectively captures pollen, dust, lint, bacteria, and mold spores, helping to reduce allergy symptoms and improve overall air quality. It does not filter smoke or viruses, making it a sensible choice for everyday filtration where odor control and high-level viral filtration aren’t the primary concerns.

The pleated design increases the filtration surface area, delivering more particle capture without sacrificing airflow to your HVAC system. The non-electrostatic, non-trimmable media works with standard residential and light commercial units, while the metal mesh adds structural rigidity to resist collapse in strong air currents.

Size, fit, and package details

• Nominal size: 16 in. W x 20 in. H x 5 in. D
• Actual size: 15-13/16 in. x 19-13/16 in. x 4-3/4 in.
• Filter type: Pleated synthetic media
• Frame material: Cardboard
• Internal support: Metal mesh
• Electrostatic: No
• Trimmable: No
• Filters bacteria, pollen, dust/lint, and mold spores.
• Does not filter smoke or viruses.
• Number in package: 1
• Product type: Air Filter

Who this is for: homes seeking reliable everyday filtration to reduce seasonal allergies, families wanting clean air in bedrooms and living spaces, and small offices with standard 16x20x5 filter slots. It’s a straightforward, no-nonsense option when you want balanced performance and value without needing high-efficiency or specialized filtration.

Practical tips for best results: ensure your unit accepts 16x20x5 filters and check the actual size before replacement, since nominal and actual dimensions can differ. To maintain airflow and filtration effectiveness, replace the filter when you notice reduced airflow or increased dust buildup on surfaces. Keep in mind this filter is optimized for pollen, dust, bacteria, and mold spores—great for everyday air quality, but not a substitute for high-level smoke or pathogen filtration.