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 9x40x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 9 x 40 x .75)
Regular price $126.91 USDRegular priceSale price $126.91 USD -
Filter King 14x22x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 14 x 22 x .75)
Regular price $79.49 USDRegular priceSale price $79.49 USD -
Filter King 6x12.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 6 x 12.5 x .75)
Regular price $105.66 USDRegular priceSale price $105.66 USD -
Filter King 36x55.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 36 x 55.5 x .75)
Regular price $294.85 USDRegular priceSale price $294.85 USD -
Filter King 38.5x33x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 38.5 x 33 x .75)
Regular price $256.06 USDRegular priceSale price $256.06 USD -
Filter King 7.5x21x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 7.5 x 21 x .75)
Regular price $105.66 USDRegular priceSale price $105.66 USD -
Filter King 39x43.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 39 x 43.5 x .75)
Regular price $271.55 USDRegular priceSale price $271.55 USD -
Filter King 38x14x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 38 x 14 x .75)
Regular price $156.67 USDRegular priceSale price $156.67 USD -
Filter King 6.5x36x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 6.5 x 36 x .75)
Regular price $115.39 USDRegular priceSale price $115.39 USD -
Filter King 7.5x18.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 7.5 x 18.5 x .75)
Regular price $105.66 USDRegular priceSale price $105.66 USD -
Filter King 20x22.25x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 20 x 22.25 x .75)
Regular price $92.42 USDRegular priceSale price $92.42 USD -
Filter King 37.5x32.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 37.5 x 32.5 x .75)
Regular price $293.12 USDRegular priceSale price $293.12 USD -
Filter King 4.5x7x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 4.5 x 7 x .75)
Regular price $106.50 USDRegular priceSale price $106.50 USD -
Filter King 39x7x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 39 x 7 x .75)
Regular price $115.39 USDRegular priceSale price $115.39 USD -
Filter King 39.5x20x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 39.5 x 20 x .75)
Regular price $150.91 USDRegular priceSale price $150.91 USD -
Filter King 5x47x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 5 x 47 x .75)
Regular price $115.39 USDRegular priceSale price $115.39 USD