For the first time, the D'Addario Two-Way Humidification System (formerly Humidipak) is now available in bulk 12-packs. This is the perfect solution for luthiers or players who need to take care of large guitar collections. Using the same trusted materials as D'Addario's other Two-Way Humidification System kits and refills, each 12-pack contains enough Humidipaks to maintain 4 guitars from 2-6 months, depending on local climate.
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Please note: You are buying a refill packette of 12, not the entire kit. The entire kit can be found here.