Durabasics Original & Upgraded Preliminary Blue Layer HAC-504 Filters for HCM-350 Humidifiers

Upgraded Blue Pre-Filter Catches Large Particles These upgraded humidifier filters offer a second layer of filtering to catch large particles before they enter your air Perfect Replacement for Honeywell HAC-504, HAC-504AW & HAC-501V1 Filters Made from high-quality, durable material, these upgraded filters are compatible with the below Honeywell humidifier models: HCM-300 Series: HCM-300T, HCM-305T, HCM-310T, HCM-315T, HCM-350, HCM-350B, HCM-350W HCM-450BCST HCM-500 Series: HCM-530, HCM-535, HCM-535-20, HCM-540, HCM-550, HCM-550-19, HCM-551, HCM-560 HCM-600 Series: HCM-630, HCM-631, HCM-632, HCM-632TG, HCM-635, HCM-640BW, HCM-645, HCM-646, HCM-650 HCM-700 Series: HCM-710 HCM-1000 Series: HCM-1000, HCM-1000C, HCM-1010 HCM-2000 Series: HCM-2000C, HCM-2001, HCM-2002, HCM-2020, HCM-2050, HCM-2051, HCM2052, HEV-312, HEV-355 Enviracaire Series: ECM-250i Rigid Construction Reduces Sagging Rigid absorbent paper reduces sagging once wet while maximizing your Honeywell's moisure output Tips for Daily Use For best results, flip filter daily and use distilled water Soak in cool water before replacing to ensure uninterrupted moisture output Package Contents 4 premium humidifier filters This is not a Honeywell OEM product. The Honeywell and Enviracaire brand names and logos are the registered trademarks of their respective owners. Any use of the Honeywell and Enviracaire brand names or model designations for this product are made solely for purposes of demonstrating compatibility. Packaging may vary, performance does not.

• Contents - 4 original (white) and 4 upgraded pre-filter (blue) humidifier filters compatible with Honeywell humidifier filter HAC-504
• Upgraded Blue Filters - Our upgraded filters compatible with Honeywell HCM350W filter feature a blue pre-filter to catch large particles before they enter your air, for even higher air quality
• Rigid Construction To Reduce Sagging - Our replacements for Honeywell humidifiers filter, Honeywell humidifiers filters and Honeywell cool humidifier filter are constructed with rigid absorbent paper to improve our filter's structure once wet and reduce sagging
• Compatible With Honeywell Humidifier Filter Model HCM350W & More - Fits HCM350W, HCM-350, HCM350, HCM-350B, HCM350B, HCM-350W, HCM-350B-CST, HCM-300, HCM300, HCM-300T, HCM300T, HCM-305T, HCM305T, HCM-310T, HCM310T, HCM-315T, HCM315T, HCM305BCST, HCM-450B-CST, HCM450BCST, HCM-500, HCM500, HCM-530, HCM530, HCM-535, HCM353, HCM-535-20, HCM53520, HCM-540, HCM540, HCM-550, HCM550, HCM-550-19, HCM55019, HCM-551, HCM551, HCM-560, HCM560, HCM-600, HCM600, HCM-630, HCM630, HCM-631, HCM631
• Usage Tips - For best results, flip your compatible Honeywell humidifier filter HAC 504 replacement daily and only fill humidifier tank with distilled water. Hard water degrades ALL compatible Honeywell humidifier filters and yellows them prematurely. Soak in cool water before replacing to ensure uninterrupted moisture output.