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  1. 20 x 20 x 4 (19 3/4 x 19 3/4 x 4 3/16) Filtrete Allergen Reduction Filter by 3M 4-Pack
    $147.55 Pack Of 4 Free Shipping

    Filtrete 1550 Allergen Reduction Filter

    Designed for Honeywell; 20x20 air cleaners.

    • 1550 Performance Rating

    • Designed for housings that accommodate 4 inch nominal size filters.

    • Captures 97% of large airborne allergens, such as pollen, mold spores and dust mite debris.

    • Robust frame construction enhances quality and ensures high durability at the shelf.

    • Lasts up to 12 months.

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