Filterbuy 20x21.5x0.75 MERV 11 Air Filter (4-Pack)
MERV 11 electrostatic pleated air filters for furnace/AC/heat pump. Helps reduce dust and allergens with synthetic media. Some customers note fit and size variations affecting airflow
Highlights
- MERV 11 performance
- electrostatic pleated media
- actual size closely matches 20x21.5x0.75
Pros
- high-efficiency MERV 11 filtration
- electrostatic pleated design
- universal compatibility for 20x21.5x1 (actual 19.88 x 21.50 x 0.75)
- sturdy construction
- value for money
Cons
- some customers report fit issues
- actual size may differ from stated
- potential airflow restriction for some furnaces
Best For
Features
- UNIVERSAL COMPATIBILITY 20x21. 5x1 replacement air filters for your furnace
- air conditioner
- or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size 19. 88" x 21. 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
