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 40.5x46.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 40.5 x 46.5 x .75)
Regular price $294.85 USDRegular priceSale price $294.85 USD -
Filter King 4x59x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 4 x 59 x .75)
Regular price $115.39 USDRegular priceSale price $115.39 USD -
Filter King 9x27x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 9 x 27 x .75)
Regular price $116.54 USDRegular priceSale price $116.54 USD -
Filter King 7.5x23.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 7.5 x 23.5 x .75)
Regular price $110.93 USDRegular priceSale price $110.93 USD -
Filter King 5x22x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 5 x 22 x .75)
Regular price $106.50 USDRegular priceSale price $106.50 USD -
Filter King 36.5x4.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 36.5 x 4.5 x .75)
Regular price $100.80 USDRegular priceSale price $100.80 USD -
Filter King 6.5x66x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 6.5 x 66 x .75)
Regular price $142.08 USDRegular priceSale price $142.08 USD -
Filter King 7.5x33x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 7.5 x 33 x .75)
Regular price $115.39 USDRegular priceSale price $115.39 USD -
Filter King 4.5x35.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 4.5 x 35.5 x .75)
Regular price $115.39 USDRegular priceSale price $115.39 USD -
Filter King 7.5x11.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 7.5 x 11.5 x .75)
Regular price $105.73 USDRegular priceSale price $105.73 USD -
Filter King 36.5x24x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 36.5 x 24 x .75)
Regular price $170.69 USDRegular priceSale price $170.69 USD -
Filter King 37.5x28x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 37.5 x 28 x .75)
Regular price $209.47 USDRegular priceSale price $209.47 USD -
Filter King 5.5x24.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 5.5 x 24.5 x .75)
Regular price $106.50 USDRegular priceSale price $106.50 USD -
Filter King 39.5x5.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 39.5 x 5.5 x .75)
Regular price $100.80 USDRegular priceSale price $100.80 USD -
Filter King 37x17x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 37 x 17 x .75)
Regular price $135.87 USDRegular priceSale price $135.87 USD -
Filter King 39x46.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 39 x 46.5 x .75)
Regular price $294.85 USDRegular priceSale price $294.85 USD