Value Pack - Premium replacement for Honeywell HFT600 Filter T filters for your Honeywell HEV615 & HEV620 humidifiers. Made from high-quality, durable material with an upgraded filter design to both filter large particles and maximize moisture outputUpgraded Blue Pre-Filter Layer - Our premium upgraded blue layer pre-filter helps reduce the quantity of large particles circulating in your airCompatible With for Honeywell Humidifier Filters Replacement Filters - Compatible with HTF600 Filter & Filter T. Precision designed and manufactured for humidifier models HEV615 & HEV620Tips For Daily Use - For best results, flip your compatible for Honeywell humidifier T filter daily and only fill humidifier tank with distilled water (this applies to all brands of filters). Hard water degrades ALL compatible for Honeywell humidifier filters and yellows them prematurelyInstallation Instructions - Soak your replacement wick for Honeywell T Filter for humidifier HEV615 and HEV620 in cool water before replacing to ensure uninterrupted moisture output. Place in filter housing with blue layer facing outwards (towards you)Material wood pulp papercolour BluePackage Contents 4 * filter elementsOnly the above package content, other products are not included.Note Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.