18" x 24" x 4"

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  • Disposable Merv 8 XTREME+Plus
    High Capacity Pleat
    18″ x 24″ x 4″ (3-Pack)

    $68.16     Add to cart

  • Koch Filter Merv 11 Std. Capacity
    Pleated Panel Filter XL11
    18″ X 24″ X 4″ (3-Pack)

    $120.51     Add to cart

  • Koch Multi-Pleat XL8-HC 102-701-027
    High Capacity Filter
    18″ x 24″ x 4″ (3-Pack)

    $112.21     Add to cart

  • Koch Multi-Pleat XL8-SC 102-700-027
    Standard Capacity Filter
    18″ x 24″ x 4″ (3-Pack)

    $89.95     Add to cart

  • Silver 94% 4″ Electrostatic Washable HVAC Furnace Filter 18″ x 24″ x 4″

    $137.47     Add to cart