Dupla Hygro SystemDupla Hygro System High Performance Digital Misting Unit The Dupla Hygro System is a powerful, digitally controlled ultrasonic misting machine designed to maintain optimal humidity in all types of terrariums and small greenhouses. Featuring a generous 4. 0L water tank, it produces a fine, cool mist to quickly raise humidity levels without disturbing your animals. With plug and play setup, a flexible extendable misting tube (40160 cm), and easy digital