HVACQuick.com Filtrete 600 Dust and Pollen Reduction Filters from 3M 9833

20x25x1 (19.6 x 24.6 x 0.8 Actual). Filtrete Dust and Pollen Reduction Filters from 3M. Filtrete™ Dust and Pollen Filters from 3M. Up to 20 times more effective at capturing micro particles than ordinary fiberglass filters. No unnecessary antimicrobial chemicals added. Filtrete™ filtering material will not support the growth of bacteria, mold, mildew or fungi in normal use. Captures large, airborne allergens like mold spores and large dust particles. Excellent for high-velocity equipment. Lasts 3 months. 3M - 600 Performance Rating, MERV 8 Rating.