Filterbuy 20x21x1 MERV 11 air filter (4-pack) 19.5x20.5x0.75
Price tier: Mid-Range
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MERV 11 pleated air filters for furnaces, ACs, or heat pumps. Helps reduce dust and allergens with electrostatic media. Customers note solid quality and value; some report sizing and fit considerations
Highlights
- MERV 11 for dust and allergen capture
- electrostatic pleated media
- 4-pack value
Pros
- universal 20x21x1 compatibility
- MERV 11 filtration for allergens and dust
- electrostatic pleated media
- solid build quality
- comes in a 4-pack
Cons
- actual size may differ from stated
- some customers report fit issues for certain furnaces
- potential airflow restriction for some setups
Best For
Features
- UNIVERSAL COMPATIBILITY 20x21x1 replacement air filters for your furnace
- air conditioner
- or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size 19. 50" x 20. 50" x 0. 75")
- MERV 11 PERFORMANCE Protect your home or business from allergens
- pets
- and more with MERV 11 synthetic media (comparable with MPR 1200 & FPR 7) that captures 95% of dust without restricting air flow
- LASTING FILTRATION Electrostatically charged media with 14 pleats per foot traps more microscopic particles and lasts 3x longer than fiberglass models (replace every 90 days for best results)
- SUPERIOR CONSTRUCTION Easy installation beverage board frames with dual wire backing outperform basic cardboard designs by improving durability and resisting extreme temperatures
