3 Pack, H100 Humidification Wick, Fits Holmes HM630, 729, 729G, 4600, 6000, 6000RC, 6005, 6600, 7203, 7203RC, 7204, 7207, HM7305, 7305RC, 7306, 7306RC, HM7405, 7405RC, HM7808, HM4600, Filter Fits BCM645, 646, 4600, 5520RC, 6000, 6010RC, 6610RC, 7203RC, 7204, 7205, 7207, 7305/RC, 7306, 7307, BHF-100.