Filterbuy 21x21x4 Air Filter MERV 8 Essential Dust & Allergy Defense (2-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 20.50 x 20.50 x 3.63)
UNIVERSAL COMPATIBILITY: 21x21x4 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 20.50" x 3.63")
MERV 8 PERFORMANCE: Protect your home or business from pollen, lint, mold, and more with MERV 8 synthetic media (comparable with MPR 700 & FPR 5) that captures 90% of dust without restricting air flow
LONG-LASTING FILTRATION: Electrostatically charged media with 8 pleats per foot traps more microscopic particles and lasts 3x longer than fiberglass models (replace every 180 days for optimal performance)
SUPERIOR CONSTRUCTION: Easy installation beverage board frames with dual wire backing outperform flimsy cardboard designs by improving durability, preventing warping, and resisting extreme temperatures
MADE IN THE USA: Built with industrial-grade, recyclable materials and proudly manufactured 100% in the United States for dependable indoor air quality that is trusted by millions of homes
-20%
Filterbuy 21.5x23.5x1 Air Filter MERV 11 Allergen Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement for Bryant and Carrier (Actual Size: 21.50 x 23.50 x 0.75 Inches)
SAR 237
Filterbuy 17.5x29.5x1 Air Filter MERV 8 Essential Dust & Allergy Defense (6-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement (Actual Size: 17.50 x 29.50 x 0.75)
SAR 303
Filterbuy 8x20x1 Air Filter MERV 8 Dust Defense (6-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 8.00 x 20.00 x 0.75 Inches)
SAR 361
Filterbuy 17.5x17.5x1 Air Filter MERV 8 Essential Dust & Allergy Defense (6-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement (Actual Size: 17.50 x 17.50 x 0.75)
SAR 235
