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Filterbuy 18x18x1 MERV 11 Allergen Defense Air Filters (4-Pack)
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About this item
- - All components are made in the United States with recyclable materials and meet industrial standards.
- - The materials used in the components are manufactured in the United States and are designed to be recyclable.
- - Components are made to industrial standards in the United States, using environmentally friendly materials.
- - All components are designed with recyclable materials and are manufactured in the United States to meet industrial grade standards.
- - Manufactured in the United States, these components are made with recyclable materials and meet industrial standards.
- High quality construction features an electrostatically charged design with 14 pleats per foot that captures more harmful particles and lasts 3x longer than fiberglass models (replace every 90 days for best performance)
- 18x18x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 17.75" x 17.75" x 0.75")
- Easy installation beverage board frames with dual wire backings improve structural integrity and outperform standard cardboard designs by resisting extreme temperatures
- MERV 11 synthetic media (comparable with MPR 1000 - 1200 & FPR 7) protects homes from pets, allergies, and more by trapping 95% of airborne particles without impacting air flow













































