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Upgrade your Essick Air 400 Series Humidifier with our Water Bottle replacement part. This American-made accessory is designed to be used with the AIRCARE-4DTS-series humidifiers as well. The 1 gallon capacity water bottle features a cap and ensures easy and efficient refilling, making it an essential component for maintaining optimal indoor humidity levels in your home or office. Say goodbye to constantly filling up the tank or dealing with spills on your floor. Simply snap this water bottle onto your Essick Air 400 Series Humidifier and enjoy the benefits of even and consistent humidification without interruptions. Don't let unreliable humidity levels ruin your day, invest in our high-quality replacement water bottle today!