The Integra Boost 420-gram 2-Way Humidity Control Pack (40-pack, 72% RH) is a premium solution for maintaining optimal humidity levels in large storage environments. Designed to regulate moisture efficiently, this pack ensures that your products remain fresh and in ideal condition by either absorbing excess humidity or releasing moisture as needed. Looking to enhance your hydroponi... https://www.hydroponicstown.com/integra-boost-420-gram-2-way-humidity-control-at-72-rh-40-pack