16x25x4 (15.94 x 24.63 x 4.31)3M(TM) Replacement Filter for HoneywellA(R)

Filtrete 1550 Allergen Reduction Filter for HoneywellA(R) 16x25 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.