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4 inch Furnace Filter

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  1. 20x25x4 MERV 11

    20x25x4 MERV 11

    Actual Size
    19-1/2 x 24-1/2 x 3-3/4
    Case of 4
    $99.99
    Part
    UF11-42025-4
  2. 20x25x4 MERV 11

    20x25x4 MERV 11

    Actual Size
    19-1/2 x 24-1/2 x 3-3/4
    Case of 6
    $109.99
    Part
    UF11-42025
  3. 24x24x4 MERV 11

    24x24x4 MERV 11

    Actual Size
    23-3/8 x 23-3/8 x 3-3/4
    Case of 6
    $119.99
    Part
    UF11-42424
  4. 20x20x4 MERV 11

    20x20x4 MERV 11

    Actual Size
    19-1/2 x 19-1/2 x 3-3/4
    Case of 4
    $74.99
    Part
    UF11-42020-4
  5. 15x20x1 MERV 11

    15x20x1 MERV 11

    Actual Size
    14-1/2 x 19-1/2 x 3/4
    Case of 6
    $54.99
    Part
    UF11-11520-6

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