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 9.5x31.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 9.5 x 31.5 x .75)
Regular price $103.87 USDRegular priceSale price $103.87 USD -
Filter King 40x27.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 40 x 27.5 x .75)
Regular price $209.47 USDRegular priceSale price $209.47 USD -
Filter King 8x37.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 8 x 37.5 x .75)
Regular price $103.87 USDRegular priceSale price $103.87 USD -
Filter King 38x15.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 38 x 15.5 x .75)
Regular price $142.08 USDRegular priceSale price $142.08 USD -
Filter King 11.5x21x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 11.5 x 21 x .75)
Regular price $80.96 USDRegular priceSale price $80.96 USD -
Filter King 7.5x51x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 7.5 x 51 x .75)
Regular price $115.39 USDRegular priceSale price $115.39 USD -
Filter King 9.5x9.5x4 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 9.5 x 9.5 x 3.75)
Regular price $93.18 USDRegular priceSale price $93.18 USD -
Filter King 40x27x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 40 x 27 x .75)
Regular price $209.47 USDRegular priceSale price $209.47 USD -
Filter King 36x4.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 36 x 4.5 x .75)
Regular price $100.80 USDRegular priceSale price $100.80 USD -
Filter King 5.5x27x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 5.5 x 27 x .75)
Regular price $106.50 USDRegular priceSale price $106.50 USD -
Filter King 36.5x39.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 36.5 x 39.5 x .75)
Regular price $263.81 USDRegular priceSale price $263.81 USD -
Filter King 36.5x23x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 36.5 x 23 x .75)
Regular price $170.69 USDRegular priceSale price $170.69 USD -
Filter King 36.5x65.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 36.5 x 65.5 x .75)
Regular price $318.14 USDRegular priceSale price $318.14 USD -
Filter King 36x16.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 36 x 16.5 x .75)
Regular price $124.10 USDRegular priceSale price $124.10 USD -
Filter King 36x15.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 36 x 15.5 x .75)
Regular price $124.10 USDRegular priceSale price $124.10 USD -
Filter King 39.5x24x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 39.5 x 24 x .75)
Regular price $170.69 USDRegular priceSale price $170.69 USD