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 40x4x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 40 x 4 x .75)
Regular price $115.39 USDRegular priceSale price $115.39 USD -
Filter King 36x28x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 36 x 28 x .75)
Regular price $239.74 USDRegular priceSale price $239.74 USD -
Filter King 9x44x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 9 x 44 x .75)
Regular price $127.23 USDRegular priceSale price $127.23 USD -
Filter King 5x19.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 5 x 19.5 x .75)
Regular price $106.50 USDRegular priceSale price $106.50 USD -
Filter King 39x66.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 39 x 66.5 x .75)
Regular price $318.14 USDRegular priceSale price $318.14 USD -
Filter King 7x11.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 7 x 11.5 x .75)
Regular price $106.50 USDRegular priceSale price $106.50 USD -
Filter King 4.5x28x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 4.5 x 28 x .75)
Regular price $106.50 USDRegular priceSale price $106.50 USD -
Filter King 40.5x12.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 40.5 x 12.5 x .75)
Regular price $124.10 USDRegular priceSale price $124.10 USD -
Filter King 8.5x38.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 8.5 x 38.5 x .75)
Regular price $115.39 USDRegular priceSale price $115.39 USD -
Filter King 39x26.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 39 x 26.5 x .75)
Regular price $209.47 USDRegular priceSale price $209.47 USD -
Filter King 6.5x56x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 6.5 x 56 x .75)
Regular price $115.39 USDRegular priceSale price $115.39 USD -
Filter King 5x54x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 5 x 54 x .75)
Regular price $115.39 USDRegular priceSale price $115.39 USD -
Filter King 4.5x45x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 4.5 x 45 x .75)
Regular price $115.39 USDRegular priceSale price $115.39 USD -
Filter King 5.5x56x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 5.5 x 56 x .75)
Regular price $115.39 USDRegular priceSale price $115.39 USD -
Filter King 36.5x52.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 36.5 x 52.5 x .75)
Regular price $294.85 USDRegular priceSale price $294.85 USD -
Filter King 37.5x11.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 37.5 x 11.5 x .75)
Regular price $142.08 USDRegular priceSale price $142.08 USD