The Winix size 21 carbon prefilter fits Winix models P300, WAC5300, WAC5500, WAC6300, 5000, 5000b, 5300, 5500, 6300, 9000 and 9500. The carbon absorbs unwanted indoor orders and keeps your home smelling fresh. Prefilters last approximately 3 months depending on use. Note: This listing is for one (1) Winix 115115 carbon prefilter made by Magnet by FiltersUSA.
The Magnet logo on this page signifies that this product is a factory direct replacement to the OEM branded filter.