Collection: Filters.

28 products
  • SILVER (1 INCH THICK) - The Economical Washable, Permanent, Electrostatic A/C Furnace Filter
    SILVER (1 INCH THICK) - The Economical Washable, Permanent, Electrostatic A/C Furnace Filter
    Regular price
    $64.99
    Sale price
    $64.99
    Unit price
    per 
  • GOLD - The Deluxe Washable, Permanent, Electrostatic A/C Furnace Filter
    GOLD - The Deluxe Washable, Permanent, Electrostatic A/C Furnace Filter
    Regular price
    $99.99
    Sale price
    $99.99
    Unit price
    per 
  • PLATINUM (1 INCH THICK) - The ULTIMATE Washable, Permanent, Electrostatic A/C Furnace Filter
    PLATINUM (1 INCH THICK) - The ULTIMATE Washable, Permanent, Electrostatic A/C Furnace Filter
    Regular price
    $129.99
    Sale price
    $129.99
    Unit price
    per 
  • MaxMERV9 - The High Arrestance Washable, Permanent, Electrostatic A/C Furnace Filter
    MaxMERV9 - The High Arrestance Washable, Permanent, Electrostatic A/C Furnace Filter
    Regular price
    $99.99
    Sale price
    $99.99
    Unit price
    per 
  • ECO-FLEX - The Economical Flexible Washable, Permanent, Electrostatic A/C Furnace Filter
    ECO-FLEX - The Economical Flexible Washable, Permanent, Electrostatic A/C Furnace Filter
    Regular price
    $99.99
    Sale price
    $99.99
    Unit price
    per 
  • DELUXE-FLEX - The Flexible Washable, Permanent, Electrostatic A/C Furnace Filter
    DELUXE-FLEX  - The Flexible Washable, Permanent, Electrostatic A/C Furnace Filter
    Regular price
    $139.99
    Sale price
    $139.99
    Unit price
    per 
  • GEOTHERMAL - Made for Geothermal Units - Washable, Permanent, Electrostatic A/C Furnace Filter
    GEOTHERMAL - Made for Geothermal Units - Washable, Permanent, Electrostatic A/C Furnace Filter
    Regular price
    $109.99
    Sale price
    $109.99
    Unit price
    per 
  • MEDIA-TYPE - Replacement Washable, Permanent, Electrostatic A/C Furnace Filter
    MEDIA-TYPE - Replacement Washable, Permanent, Electrostatic A/C Furnace Filter
    Regular price
    $119.99
    Sale price
    $119.99
    Unit price
    per 
  • Permanent 1/4 Inch Pre-Filters for Electronic Air Cleaners (EAC)
    Permanent 1/4 Inch Pre-Filters for Electronic Air Cleaners (EAC)
    Regular price
    $69.99
    Sale price
    $69.99
    Unit price
    per 
  • SILVER (2 INCH THICK) - The Economical Washable, Permanent, Electrostatic A/C Furnace Filter
    SILVER (2 INCH THICK) - The Economical Washable, Permanent, Electrostatic A/C Furnace Filter
    Regular price
    $99.99
    Sale price
    $99.99
    Unit price
    per 
  • PLATINUM (2 INCH THICK) - The ULTIMATE Washable, Permanent, Electrostatic A/C Furnace Filter
    PLATINUM (2 INCH THICK) - The ULTIMATE Washable, Permanent, Electrostatic A/C Furnace Filter
    Regular price
    $149.99
    Sale price
    $149.99
    Unit price
    per