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4 inch Furnace Filter

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  1. 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
  2. 16x25x4 MERV 13

    16x25x4 MERV 13

    Actual Size
    15-1/2 x 24-1/2 x 3-3/4
    Case of 4
    $89.95
    Part
    UF13-41625-4
  3. 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
  4. 20x25x4 MERV 8

    20x25x4 MERV 8

    Actual Size
    19-1/2 x 24-1/2 x 3-3/4
    Case of 6
    $79.99
    Part
    UF8-42025
  5. 20x20x4 MERV 11

    20x20x4 MERV 11

    Actual Size
    19-1/2 x 19-1/2 x 3-3/4
    Case of 6
    $89.99
    Part
    UF11-42020

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