The Hydra Replacement Water Cartridge – Small is an essential component for maintaining optimal humidity levels in your humidor. Designed specifically for use with Hydra humidification systems, this small water cartridge provides consistent moisture release, ensuring your cigars remain fresh and perfectly aged. Easy to install and replace, it helps maintain the ideal environment within your humidor by delivering precise humidity control. Keep your cigars in prime condition with the reliability and convenience of the Hydra Replacement Water Cartridge.