The Hydra Replacement Water Cartridge – Large is a high-capacity refill cartridge designed specifically for the Hydra LG Electronic Humidifier, which is built to maintain humidity in large humidors of up to 16 cubic feet.  This cartridge employs a treated foam core that retains water and disperses moisture evenly throughout the humidor, helping to keep cigars properly humidified. Hydra recommend using distilled water to prevent mineral build-up and ensure optimal performance. For best results, the large water cartridge should be replaced annually, as part of regular humidifier maintenance. Its effective capacity supports continuous regulation of relative humidity—necessary for collections of sizable cigar inventories—ensuring the environment inside the humidor stays stable.

In summary, the Hydra Large Water Cartridge is a vital component for those with large humidors, combining longevity, consistent moisture control, and ease of use—helping ensure cigars remain in prime condition over time.