Feature●🚩DUAL-USE HYDRATION: The M15 is a dual-use gas mask hydration system designed for emergency CBRN situations and a standard drinking system suitable for outdoor activities.●🚩COMPATIBILITY: The M15 is compatible with various Israeli gas mask models: M15, SIMPLEX, Black Diamond Simplex, and Shalon 4a1.●🚩SAFE & CONVENIENT drinking in all CBRN scenarios.●🚩SIZE: A two-liter/ 72-ounce drinking bladder with a wide filling lid and handle for hanging and carrying.●🚩Fast replacement between outdoor mode and CBRN modeDescription