Compatible Models-Moisturizing Filters Honeywell Hajj-504, Hajj-504AW, Hajj-504V1, HCM-350, HCM350, HCM350W, HCM-350B, HCM350B, HCM-350W, HCM-350B-CSt, HCM-300, HCM-300T, HCM300T, HCM300T, HCM300B HCM-305T, HCM310T, HCM-315T, HCM305BCST, HCM-450B-CST, HCM450BCSt, HCM-500, HCM-530, HCM530, HCM-535, HCM353, HCM-535-20, HCM53520, HCM-540, HCM-540, HCM550 is compatible with HCM-550-19. HCM55019, HCM-551, HCM-560, HCM560, HCM-600, HCM-630, HCM630, HCM-631, HCM631. The spare a.standart white moisturizing filters for the Honeywell filter - our moisturizing filter backup for Honeywell Hajj -504 is made of high -quality hard reinforced knitted paper and adopts hot glue strips and intense structure to improve and reduce sagging. Moisturizing filter with higher efficiency, lower pressure, the quality and the largest surface area, enables the moisture to be excreted as you expect. The absorbent network paper works with the moisturizer to filter the dirt in the water, prevents the white powder from entering the interior air and accumulating to anything in the field of view, and allows your moisturizer to maintain the highest performance. Cost Effective Products - Package contains 4 X standard white moisturizing filter backup for Honeywell Hajj -504. Filter Dimensions: Y: 7.0 x U 5,3 x g: 4.8 inches. Hot tips: For the results, please fill the moisturizer tank with distilled water. Excessive use of hard water disrupts filters and causes them to yellow early. Compatible with the performance, we recommend that you change the Honeywell Filter Hajj-504 every 2-3 months (depending on your use and environment) ly-stay depending on providing a simple and trouble- shopping experience of large device spare parts and proving that we have the highest quality parts and in the market. We are behind our products and our customers are our focus as a business. If you have any quality problems, please our customer team on time, we will do our to solve your problems.