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Replacement PreFilter for all models, Universal cut to fit filter
Fits most Hunter Air Purifier models, including PermaLife and QuietFlo models
Activated Carbon PreFilter
Filter Model 30901
Approximate filter dimensions 16 inches x 27 inches must be cut to fit
Universal replacement carbon prefilter-Fits all Hunter QuietFlo and New HEPAtech models
Hunter 30901 Replacement Pre-Filter for HEPAtech Quiet Flo Air Purifiers - B0000X45F8