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  • 18x24x1 Koch Multi-Pleat XL11 MERV 11 High Capacity 102-081-016 (12 Filters)
    MERV 11 HC
    Koch

    18x24x1 Multi-Pleat XL11 MERV 11 High Capacity

    $231.60
    $231.60
    Case of 12 $19.30/filter
  • 12x12x1 Koch Multi-Pleat XL11 MERV 11 High Capacity 102-500-051 (12 Filters)
    MERV 11 HC
    Koch

    12x12x1 Multi-Pleat XL11 MERV 11 High Capacity

    $307.80
    $307.80
    Case of 12 $25.65/filter
  • 25x29x4 Koch Multi-Pleat XL11 MERV 11 High Capacity 102-084-010 (6 Filters)
    MERV 11 HC
    Koch

    25x29x4 Multi-Pleat XL11 MERV 11 High Capacity

    $494.99
    $494.99
    Case of 6 $82.50/filter
  • 12x20x2 Koch Multi-Pleat XL11 MERV 11 High Capacity 102-082-002 (12 Filters)
    MERV 11 HC
    Koch

    12x20x2 Multi-Pleat XL11 MERV 11 High Capacity

    $272.99
    $272.99
    Case of 12 $22.75/filter
  • 24x30x2 Koch Multi-Pleat XL11 MERV 11 102-092-011 (12 Filters)
    MERV 11
    Koch

    24x30x2 Multi-Pleat XL11 MERV 11

    $417.99
    $417.99
    Case of 12 $34.83/filter
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