Collection: Furnace Filters
Furnace filters trap dust and allergens to keep your air clean and system running efficiently.
Shop easy-to-install filters for better airflow and everyday home comfort.
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Filter King 39.5x64.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 39.5 x 64.5 x .75)
Regular price $364.16 USDRegular priceSale price $364.16 USD -
Filter King 4.5x13.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 4.5 x 13.5 x .75)
Regular price $106.50 USDRegular priceSale price $106.50 USD -
Filter King 5.5x47.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 5.5 x 47.5 x .75)
Regular price $115.39 USDRegular priceSale price $115.39 USD -
Filter King 39.5x48.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 39.5 x 48.5 x .75)
Regular price $294.85 USDRegular priceSale price $294.85 USD -
Filter King 37.5x60x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 37.5 x 60 x .75)
Regular price $318.14 USDRegular priceSale price $318.14 USD -
Filter King 9x4x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 9 x 4 x .75)
Regular price $105.66 USDRegular priceSale price $105.66 USD -
Filter King 7x48x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 7 x 48 x .75)
Regular price $103.87 USDRegular priceSale price $103.87 USD -
Filter King 40x31x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 40 x 31 x .75)
Regular price $263.74 USDRegular priceSale price $263.74 USD -
Filter King 38x19x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 38 x 19 x .75)
Regular price $131.84 USDRegular priceSale price $131.84 USD -
Filter King 39.5x9.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 39.5 x 9.5 x .75)
Regular price $103.87 USDRegular priceSale price $103.87 USD -
Filter King 5x65x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 5 x 65 x .75)
Regular price $115.39 USDRegular priceSale price $115.39 USD -
Filter King 40x43x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 40 x 43 x .75)
Regular price $310.85 USDRegular priceSale price $310.85 USD -
Filter King 36x25.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 36 x 25.5 x .75)
Regular price $195.33 USDRegular priceSale price $195.33 USD -
Filter King 40.5x17x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 40.5 x 17 x .75)
Regular price $150.91 USDRegular priceSale price $150.91 USD -
Filter King 9x9.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 9 x 9.5 x .75)
Regular price $104.83 USDRegular priceSale price $104.83 USD -
Filter King 6.5x62.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 6.5 x 62.5 x .75)
Regular price $142.08 USDRegular priceSale price $142.08 USD