Filterbuy 21x23x1 MERV 11 Air Filter (3-Pack)
Premium pleated HVAC air filters with MERV 11 for allergen control and improved airflow. Customers note high quality and effective dust capture, with some sizing discrepancies mentioned
Highlights
- MERV 11 synthetic media
- actual size 20.50 x 22.50 x 0.75
- 3-pack convenience
Pros
- MERV 11 filtration for allergens
- Electrostatic pleated design
- Universal 21x23x1 compatibility
- Sturdy construction and lasting durability
- 3-pack for multiple replacements
Cons
- Actual size may differ slightly from expected
Best For
Features
- UNIVERSAL COMPATIBILITY 21x23x1 replacement air filters for your furnace
- air conditioner
- or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size 20. 50" x 22. 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
