UPC 643910000410

Replacement Pre-Filters For Honeywell Air Cleaners - Compare to Honeywell Part #33002 - Our hassle-free, Activated Charcoal Pre-Filters are ready-to-use with no measuring or cutting required. Each pre-filter will last for about 3 months depending upon the environment and are sold in a 2-Pack for a 6 month supply. One way to tell it is time to replace them is by the color. They are almost black to begin with and turn a light gray color when they need to be changed. Fits Models 10000(EV-1), 12500(EV-25), 12520, 12525, 12528, 13500(EV-35A), 13501, 13530, 13531, 13532, 13533, 17400, 17440, 17450, 43300, 50200, 50201, 52000, 62500, 83133, 83165, 83236, 83256 & 83331. Buy 4 or More for a quantity price break!