Replacement humidifier filter pack designed for direct fit in compatible humidifier models. This 2pack provides a reliable, easy to install solution for routine maintenance and filter replacement. Key benefits Restores proper humidifier operation by replacing worn or clogged filters. Durable construction resists breakage and fading for extended service life. Simple installation and removal makes routine maintenance quick and hassle . Sold as a 2 pack so you have a spare on hand for timely replacement. Specifications Size: 815/16 in L x 7 in W x 111/16 in T Package includes: 2 filters Material: robust, long lasting filter material designed for stable performance Compatibility Compatible with models HU1000711, HU1000711, HU10021, HU10021 (compatibility references only) Performance and use Functions as an aftermarket replacement part to capture mineral buildup and sediment that can reduce humidifier effectiveness and cause deposits. Helps maintain consistent humidifier operation between full service or part replacement intervals. Designed for routine use and replacement according to humidifier manufacturer guidance. Typical applications the existing filter during seasonal humidifier startup in homes and apartments. Keep a spare filter in offices or workspaces to minimize downtime during maintenance. Use during regular maintenance of small room humidifiers to extend device longevity. Additional information This is an aftermarket replacement part. Any brand name referenced is for compatibility purposes only. Includes 30 day moneyback and 18 month worry . If you are unsure about fit, verify your humidifier model and serial number before .