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 7x51x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 7 x 51 x .75)
Regular price $115.39 USDRegular priceSale price $115.39 USD -
Filter King 37x60.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 37 x 60.5 x .75)
Regular price $364.16 USDRegular priceSale price $364.16 USD -
Filter King 4x21x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 4 x 21 x .75)
Regular price $106.50 USDRegular priceSale price $106.50 USD -
Filter King 39x59.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 39 x 59.5 x .75)
Regular price $318.14 USDRegular priceSale price $318.14 USD -
Filter King 8.5x51x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 8.5 x 51 x .75)
Regular price $142.08 USDRegular priceSale price $142.08 USD -
Filter King 9.5x22.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 9.5 x 22.5 x .75)
Regular price $105.66 USDRegular priceSale price $105.66 USD -
Filter King 7.5x42x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 7.5 x 42 x .75)
Regular price $115.39 USDRegular priceSale price $115.39 USD -
Filter King 8x16x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 8 x 16 x .75)
Regular price $116.54 USDRegular priceSale price $116.54 USD -
Filter King 7.5x64x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 7.5 x 64 x .75)
Regular price $142.08 USDRegular priceSale price $142.08 USD -
Filter King 36.5x21x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 36.5 x 21 x .75)
Regular price $150.91 USDRegular priceSale price $150.91 USD -
Filter King 4.5x23.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 4.5 x 23.5 x .75)
Regular price $106.50 USDRegular priceSale price $106.50 USD -
Filter King 37x19x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 37 x 19 x .75)
Regular price $151.30 USDRegular priceSale price $151.30 USD -
Filter King 38.5x43x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 38.5 x 43 x .75)
Regular price $310.85 USDRegular priceSale price $310.85 USD -
Filter King 37.5x59x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 37.5 x 59 x .75)
Regular price $318.14 USDRegular priceSale price $318.14 USD -
Filter King 36.5x45.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 36.5 x 45.5 x .75)
Regular price $271.55 USDRegular priceSale price $271.55 USD -
Filter King 5.5x38.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters, MADE IN USA, HVAC, Pleated, Electrostatic (Actual Size: 5.5 x 38.5 x .75)
Regular price $115.39 USDRegular priceSale price $115.39 USD