The Cartisan Flex Flower Atomizer The Cartisan Flex Flower Atomizer is optimized for even heating and controlled airflow when using dry herb with the Flex device. Built for reliability and ease of use, it provides a balanced, efficient experience in a simple, interchangeable format. Retail Unit: Two (2) Atomizers Variable Voltage: 2.2V to 4.0V Thread: Standard 510 Silicone Cover & Stainless Steel Heating Element