HEPAtech Replacement Filter Fits Models 30054, 30050, 30071, 30832, 30882, 30883, 37055 30055, 30065, 30070, 30075 30080, 30177, 37065 also fits 30905, 30913, 30920 10 1/2×13 3/4×3/4 Old number HN920, 30920 This filter is made by Magnet by FiltersUSA.