Filterbuy 21x22x1 MERV 13 air filter (4-pack) – 20.50 x 21.50 x 0.75
MERV 13 pleated air filters for furnace, AC, or heat pump. Improves air quality with synthetic media. Customers report easy installation and good value, with some noting size variance
Highlights
- MERV 13 synthetic media
- 20.50 x 21.50 x 0.75 actual size
- 4-pack for multiple replacements
Pros
- universal compatibility with furnace, AC, or heat pump
- MERV 13 filtration captures fine particles
- easy installation
- includes multiple filters (4-pack)
- made in USA
Cons
- size reported as sometimes smaller than advertised
- mixed opinions on build quality
Best For
Features
- UNIVERSAL COMPATIBILITY 21x22x1 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 21. 50" x 0. 75")
- MERV 13 PERFORMANCE Protect your home or business from germs
- bacteria
- and more with MERV 13 synthetic media (comparable with MPR 1900 & FPR 10) that captures 98% of dust without restricting air flow
- LASTING FILTRATION Electrostatically charged media with 16 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
