[Change parts numbers] Our moisturizing wick filter replaces the pilgrimage-504, pilgrimage-504aw, pilgrimage filters. [Wide Compliance] Moisturizing Filters Honeywell HCM-350, HCM350, HCM350W, HCM-350B, HCM350B, HCM-350W, HCM-350B-CST, HCM-300, HCM-300T, HCM300T, HCM-305T, HCM310T, HCM-315B-CST, HCM-315B-CS HCM305BCst, HCM-450B-CST, HCM450BCSt, HCM-500, HCM-530, HCM530, HCM-535, HCM353, HCM-535-20, HCM53520. HCM-540, HCM550, HCM-550-19, HCM55019, HCM-551, HCM-560, HCM560, HCM-600, HCM-630, HCM-630, HCM630, HCM-631, HCM631 moisturizers. Our filters are equipped with nested network structure that allows water to pass through the gaps and create capillaries. Therefore, our filter can greatly reduce water evaporation and perform the high -efficiency water outlet of the moisturizer .. [Easy to change regularly] We recommend that you dip your fitting filter in cold water before changing for uninterrupted moisture output. This prepares the filter for optimum performance and keeps your moisturizer effective and efficient. In addition, after exposure to moisture of the Hajj-504 filter, it can improve the degree of hardening and thus increase the life of the filter .. [Valuable package information] 6 Blue Moisturizing Filter extraordinary quality at an affordable price. This package provides optimum performance and maximum comfort for you and your family by making it easy and cost -effective to ensure your moisturizer.